ORCID Profile
0000-0002-5055-3266
Current Organisations
Burnet Institute
,
Monash University
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Publisher: Cold Spring Harbor Laboratory
Date: 02-06-2021
DOI: 10.1101/2021.05.29.21258055
Abstract: The city of Melbourne, Australia experienced two waves of the COVID-19 epidemic peaking, the first in March and a more substantial wave in July 2020. During the second wave, a series of control measure were progressively introduced that initially slowed the growth of the epidemic then resulted in decreasing cases until there was no detectable local transmission. To determine the relative efficacy of the progressively introduced intervention measures, we modelled the second wave as a series of exponential growth and decay curves. We used a linear regression of the log of daily cases vs time, using a four-segment linear spline model corresponding to implementation of the three successive major public health measures. The primary model used all reported cases between 14 June and 15 September then compared the projection of the model with observed cases predict future case trajectory up until the 31 October to assess the use of exponential models in projecting the future course and planning future interventions. The main outcome measures were the exponential daily growth constants, analysis of residuals and estimates of the 95% confidence intervals for the expected case distributions, comparison of predicted daily cases. The exponential growth/decay constants in the primary analysis were: 0.122 (s.e. 0.004), 0.035 (s.e. 0.005), -0.037 (s.e. 0.011), and -0.069 (s.e. 0.003) for the initial growth rate, Stage 3, stage 3 + compulsory masks and Stage 4, respectively. Extrapolation of the regression model from the 14 September to the 31 October matched the decline in observed cases over this period. The four-segment exponential model provided an excellent fit of the observed reported case data and predicted the day-to-day range of expected cases. The extrapolated regression accurately predicted the decline leading to epidemic control in Melbourne.
Publisher: JMIR Publications Inc.
Date: 11-2017
Abstract: eal-time ecological momentary interventions have shown promising effects in domains other than alcohol use however, only few studies regarding ecological momentary interventions for alcohol use have been conducted thus far. The increasing popularity of smartphones offers new avenues for intervention and innovation in data collection. e aimed to test the efficacy of an ecological momentary intervention, comprising mobile Web-based ecological momentary assessments (EMAs) and text messaging (short message service, SMS) brief interventions, delivered during drinking events using participants’ mobile phones. e conducted a three-armed randomized controlled trial to assess the effect of a mobile Web-based ecological momentary assessment with texting feedback on self-reported alcohol consumption and alcohol-related harms in young adults. Participants were enrolled from an existing observational cohort study of young adults screened for risky drinking behavior. The intervention group (ecological momentary intervention group) completed repeated ecological momentary assessments during 6 drinking events and received immediate texting-based feedback in response to each ecological momentary assessment. The second group (ecological momentary assessment group) completed ecological momentary assessments without the brief intervention, and the third did not receive any contact during the trial period. Recent peak risky single-occasion drinking was assessed at the baseline and follow-up using telephone interviews. We used a random effects mixed modeling approach using maximum likelihood estimation to provide estimates of differences in mean drinking levels between groups between baseline and 12-week follow-up. total of 269 participants were randomized into the 3 groups. The ecological momentary intervention group exhibited a small and nonsignificant increase between baseline and follow-up in (geometric) the mean number of standard drinks consumed at the most recent heavy drinking occasion (mean 12.5 vs 12.7). Both ecological momentary assessment and control groups exhibited a nonsignificant decrease (ecological momentary assessment: mean 13.8 vs 11.8 control: mean 12.3 vs 11.6) these changes did not differ significantly between groups (Wald χ22 1.6 P=.437) and the magnitude of the effects of the intervention were markedly small. No other significant differences between groups on measures of alcohol consumption or related harms were observed. The intervention acceptability was high despite the technical problems in delivery. ith a small number of participants, this study showed few effects of an SMS-based brief intervention on peak risky single-occasion drinking. Nevertheless, the study highlights areas for further investigation into the effects of EMI on young adults with heavy alcohol consumption. ustralian New Zealand Clinical Trials Registry ACTRN12616001323415 www.anzctr.org.au/Trial/Registration/TrialReview.aspx?id=369534 (Archived by WebCite at 074mqwcs)
Publisher: Wiley
Date: 19-05-2022
DOI: 10.1111/IMJ.15701
Publisher: JMIR Publications Inc.
Date: 05-12-2022
Abstract: eers are an important determinant of health and well-being during late adolescence however, there is limited quantitative research examining peer influence. Previous peer network research with adolescents faced methodological limitations and difficulties recruiting young people. his study aims to determine whether a web-based peer network survey is effective at recruiting adolescent peer networks by comparing 2 strategies for reimbursement. his study will use a 2-group randomized trial design to test the effectiveness of reimbursements for peer referral in a web-based cross-sectional peer network survey. Young people aged 16-18 years recruited through Instagram, Snapchat, and a survey panel will be randomized to receive either scaled group reimbursement (the experimental group) or fixed in idual reimbursement (the control group). All participants will receive a reimbursement of Aus $5 (US $3.70) for their own survey completion. In the experimental group (scaled group reimbursement), all participants within a peer network will receive an additional Aus $5 (US $3.70) voucher for each referred participant who completes the study, up to a maximum total value of Aus $30 (US $22.20) per participant. In the control group (fixed in idual reimbursement), participants will only be reimbursed for their own survey completion. Participants’ peer networks are assessed during the survey by asking about their close friends. A unique survey link will be generated to share with the participant’s nominated friends for the recruitment of secondary participants. Outcomes are the proportion of a participant’s peer network and the number of referred peers who complete the survey. The required s le size is 306 primary participants. Using a multilevel logistic regression model, we will assess the effect of the reimbursement intervention on the proportion of primary participants’ close friends who complete the survey. The secondary aim is to determine participant characteristics that are associated with successfully recruiting close friends. Young people aged 16-18 years were involved in the development of the study design through focus groups and interviews (n=26). articipant recruitment commenced in 2022. longitudinal web-based social network study could provide important data on how social networks and their influence change over time. This trial aims to determine whether scaled group reimbursement can increase the number of peers referred. The outcomes of this trial will improve the recruitment of young people to web-based network studies of sensitive health issues. ERR1-10.2196/44813
Publisher: Wiley
Date: 12-12-2020
DOI: 10.1111/JVH.13447
Publisher: JMIR Publications Inc.
Date: 20-11-2019
Abstract: he advent of direct-acting antivirals (DAAs) and point-of-care (POC) testing platforms for hepatitis C allow for the decentralization of care to primary care settings. In many countries, access to DAAs is generally limited to tertiary hospitals, with limited published research documenting decentralized models of care in low-and middle-income settings. his study aims to assess the feasibility, acceptability, effectiveness, and cost-effectiveness of decentralized community-based POC testing and DAA therapy for hepatitis C among people who inject drugs and the general population in Yangon, Myanmar. apid diagnostic tests for anti-hepatitis C antibodies were carried out on-site and, if reactive, were followed by POC GeneXpert hepatitis C RNA polymerase chain reaction tests. External laboratory blood tests to exclude other major health issues were undertaken. Results were given to participants at their next appointment, with the participants commencing DAA therapy that day if a specialist review was not required. Standard clinical data were collected, and the participants completed behavioral questionnaires. The primary outcome measures are the proportion of participants receiving GeneXpert hepatitis C RNA test, the proportion of participants commencing DAA therapy, the proportion of participants completing DAA therapy, and the proportion of participants achieving sustained virological response 12 weeks after completing DAA therapy. ecruitment was completed on September 30, 2019. Monitoring visits and treatment outcome visits are scheduled to continue until June 2020. his feasibility study in Myanmar contributes to the evidence gap for community-based hepatitis C care in low- and middle-income settings. Evidence from this study will inform the scale-up of hepatitis C treatment programs in Myanmar and globally. ERR1-10.2196/16863
Publisher: Wiley
Date: 28-02-2023
DOI: 10.5694/MJA2.51864
Abstract: To examine changes in the positive infectious syphilis test rate among women and heterosexual men in major Australian cities, and rate differences by social, biomedical, and behavioural determinants of health. Analysis of data extracted from de‐identified patient records from 34 sexual health clinics participating in the Australian Collaboration for Coordinated Enhanced Sentinel Surveillance of Sexually Transmissible Infections and Blood Borne Viruses (ACCESS). First tests during calendar year for women and heterosexual men aged 15 years or more in major cities who attended ACCESS sexual health clinics during 2011–2019. Positive infectious syphilis test rate change in annual positive test rate. 180 of 52 221 tested women (0.34%) and 239 of 36 341 heterosexual men (0.66%) were diagnosed with infectious syphilis. The positive test rate for women was 1.8 (95% confidence interval [CI], 0.9–3.2) per 1000 tests in 2011, 3.0 (95% CI, 2.0–4.2) per 1000 tests in 2019 (change per year: rate ratio [RR], 1.12 95% CI, 1.01–1.25) for heterosexual men it was 6.1 (95% CI, 3.8–9.2) per 1000 tests in 2011 and 7.6 (95% CI, 5.6–10) per 1000 tests in 2019 (RR, 1.10 95% CI, 1.03–1.17). In multivariable analyses, the positive test rate was higher for women (adjusted RR [aRR], 1.85 95% CI, 1.34–2.55) and heterosexual men (aRR, 2.39 95% CI, 1.53–3.74) in areas of greatest socio‐economic disadvantage than for those in areas of least socio‐economic disadvantage. It was also higher for Indigenous women (aRR, 2.39 95% CI, 1.22–4.70) and for women who reported recent injection drug use (aRR, 4.87 95% CI, 2.18–10.9) than for other women it was lower for bisexual than heterosexual women (aRR, 0.48 95% CI, 0.29–0.81) and for women who reported recent sex work (aRR, 0.35 95% CI, 0.29–0.44). The positive test rate was higher for heterosexual men aged 40–49 years (aRR, 2.11 95% CI, 1.42–3.12) or more than 50 years (aRR, 2.36 95% CI, 1.53–3.65) than for those aged 15–29 years. The positive test rate among both urban women and heterosexual men tested was higher in 2019 than in 2011. People who attend reproductive health or alcohol and drug services should be routinely screened for syphilis.
Publisher: JMIR Publications Inc.
Date: 19-06-2019
Abstract: emale sex workers (FSWs) have high rates of both unintended pregnancy and HIV, but few health promotion interventions address their contraceptive needs or other sexual and reproductive health and rights (SRHR) concerns. A broader approach integrates contraceptive promotion with HIV and sexually transmitted infection (STI) prevention and management, alcohol awareness, gender-based violence and rights, and health care utilization. The Women’s Health Intervention using SMS for Preventing Pregnancy (WHISPER) mobile phone intervention uses a participatory development approach and behavior change theory to address these high-priority concerns of FSWs in Mombasa, Kenya. his paper aimed to (1) describe the process of development of the WHISPER intervention, its theoretical framework, key content domains and strategies and (2) explore workshop participants’ responses to the proposed intervention, particularly with regard to message content, behavior change constructs, and feasibility and acceptability. he research team worked closely with FSWs in two phases of intervention development. First, we drafted content for three different types of messages based on a review of the literature and behavior change theories. Second, we piloted the intervention by conducting six workshops with 42 FSWs to test and refine message content and 12 interviews to assess the technical performance of the intervention. Workshop data were thematically analyzed using a mixed deductive and inductive approach. he intervention framework specified six SRHR domains that were viewed as highly relevant by FSWs. Reactions to intervention content revealed that social cognitive strategies to improve knowledge, outcome expectations, skills, and self-efficacy resonated well with workshop participants. Participants found the content empowering, and most said they would share the messages with others. The refined intervention was a 12-month SMS program consisting of informational and motivational messages, role model stories portraying behavior change among FSWs, and on-demand contraceptive information. ur results highlight the need for health promotion interventions that incorporate broader components of SRHR, not only HIV prevention. Using a theory-based, participatory approach, we developed a digital health intervention that reflects the complex reality of FSWs’ lives and provides a feasible, acceptable approach for addressing SRHR concerns and needs. FSWs may benefit from health promotion interventions that provide relevant, actionable, and engaging content to support behavior change.
Publisher: JMIR Publications Inc.
Date: 08-08-2019
DOI: 10.2196/13625
Abstract: Passive surveillance is the principal method of sexually transmitted infection (STI) and blood-borne virus (BBV) surveillance in Australia whereby positive cases of select STIs and BBVs are notified to the state and territory health departments. A major limitation of passive surveillance is that it only collects information on positive cases and notifications are heavily dependent on testing patterns. Denominator testing data are important in the interpretation of notifications. The aim of this study is to establish a national pathology laboratory surveillance system, part of a larger national sentinel surveillance system called ACCESS (the Australian Collaboration for Coordinated Enhanced Sentinel Surveillance). ACCESS is designed to utilize denominator testing data to understand trends in case reporting and monitor the uptake and outcomes of testing for STIs and BBVs. ACCESS involves a range of clinical sites and pathology laboratories, each with a separate method of recruitment, data extraction, and data processing. This paper includes pathology laboratory sites only. First established in 2007 for chlamydia only, ACCESS expanded in 2012 to capture all diagnostic and clinical monitoring tests for STIs and BBVs, initially from pathology laboratories in New South Wales and Victoria, Australia, to at least one public and one private pathology laboratory in all Australian states and territories in 2016. The pathology laboratory sentinel surveillance system incorporates a longitudinal cohort design whereby all diagnostic and clinical monitoring tests for STIs and BBVs are collated from participating pathology laboratories in a line-listed format. An anonymous, unique identifier will be created to link patient data within and between participating pathology laboratory databases and to clinical services databases. Using electronically extracted, line-listed data, several indicators for each STI and BBV can be calculated, including the number of tests, unique number of in iduals tested and retested, test yield, positivity, and incidence. To date, over 20 million STI and BBV laboratory test records have been extracted for analysis for surveillance monitoring nationally. Recruitment of laboratories is ongoing to ensure appropriate coverage for each state and territory reporting of indicators will occur in 2019 with publication to follow. The ACCESS pathology laboratory sentinel surveillance network is a unique surveillance system that collects data on diagnostic testing, management, and care for and of STIs and BBVs. It complements the ACCESS clinical network and enhances Australia’s capacity to respond to STIs and BBVs. DERR1-10.2196/13625
Publisher: Wiley
Date: 05-07-2022
DOI: 10.1111/JVH.13723
Abstract: In 2020, the Australian state of Victoria experienced the longest COVID‐19 lockdowns of any jurisdiction, with two lockdowns starting in March and July, respectively. Lockdowns may impact progress towards eliminating hepatitis C through reductions in hepatitis C testing. To examine the impact of lockdowns on hepatitis C testing in Victoria, de‐identified data were extracted from a network of 11 services that specialize in the care of people who inject drugs (PWID). Interrupted time‐series analyses estimated weekly changes in hepatitis C antibody and RNA testing from 1 January 2019 to 14 May 2021 and described temporal changes in testing associated with lockdowns. Interruptions were defined at the weeks corresponding to the start of the first lockdown (week 14) and the start (week 80) and end (week 95) of the second lockdown. Pre‐COVID, an average of 80.6 antibody and 25.7 RNA tests were performed each week. Following the first lockdown in Victoria, there was an immediate drop of 23.2 antibody tests and 8.6 RNA tests per week (equivalent to a 31% and 46% drop, respectively). Following the second lockdown, there was an immediate drop of 17.2 antibody tests and 4.6 RNA tests per week (equivalent to a 26% and 33% drop, respectively). With testing and case finding identified as a key challenge to Australia achieving hepatitis C elimination targets, the cumulative number of testing opportunities missed during lockdowns may prolong efforts to find, diagnose and engage or reengage in care of the remaining population of PWID living with hepatitis C.
Publisher: Wiley
Date: 03-01-2020
DOI: 10.1111/JVH.13252
Abstract: If Australia is to successfully eliminate hepatitis B as a public health threat, it will need to enhance the chronic hepatitis B (CHB) care cascade. This study used a Markov model to assess the impact, cost and cost-effectiveness of scaling up CHB diagnosis, linkage to care and treatment to reach national and international elimination targets for hepatitis B in Australia. Compared to continued current trends, the model calculated the difference in care cascade projection, disability-adjusted life years (DALYs), costs and the incremental cost-effectiveness ratio (ICER), of scaling up CHB diagnosis, linkage to care and treatment to reach: (a) Australia's 2022 national targets and (b) the WHO's 2030 global targets. Achieving the national and WHO targets had ICERs of A$13 435 (A$10 236-A$21 165) and A$14 482 (A$13 031-A$25 641) per DALY averted between 2016 and 2030 in Australia, respectively. However, this excluded implementation and demand generation costs. The ICER for the National Strategy and WHO Strategy remained under A$50 000 per DALY averted if Australia spent up to A$328 or A$538 million, respectively, per annum (for 2016-2030) on implementation and demand generation activities. Sensitivity analysis showed that cost-effectiveness was predominately driven by the cost of CHB treatment and influenced by disease progression rates. Hence for Australia to reach the National Hepatitis B Strategy 2022 targets and WHO Strategy 2030 targets, it requires an improvement in the CHB care cascade. We estimated it is cost-effective to spend up to A$328 million or A$538 million per year to reach the National and WHO Strategy targets, respectively.
Publisher: JMIR Publications Inc.
Date: 06-2020
DOI: 10.2196/15964
Abstract: The impact of viewing pornography at a young age on the sexual health of subgroups of young people is an important public health issue. However, the topic is complex and extremely sensitive, and best practices for research and harm reduction are yet to be defined. Drawing on cross-disciplinary approaches, such as co-design, is one way to achieve a better understanding of the issue among vulnerable young people and to create needs-based and evidence-informed digital resources to promote pornography literacy. The objective of this study was to co-design a relevant, usable, and acceptable digital prototype to address the pornography literacy needs of vulnerable young people. In total, 17 young people aged between 14 and 23 years who were engaged in youth services programs or alternative education programs were recruited to participate in 4 co-design workshops with a multidisciplinary design team. Although the participants could identify problems with pornography and critique its messages, they lacked the information to understand alternative healthy attitudes and behaviors. A digital resource that provides detailed and practical information about sex, sexual ethics, and relationships may help vulnerable young people to identify and contrast with any problematic messages they receive from both pornography and society. Embedding this information with pornography literacy messages may be a more effective way of addressing underlying attitudes. Acknowledging information-seeking patterns and leveraging user interaction patterns from commonly used digital platforms among users may enhance engagement with resources. Importantly, digital platforms are perceived among this group as a source of anonymous secondary information but would not be organically accessed among this group without face-to-face conversations as an access point. This paper highlights the potential for pornography literacy to be embedded within real and practical information about having sex, navigating sexuality, and healthy relationships. The study findings include important recommendations for the conceptualization of digital pornography literacy programs and opportunities for cross-disciplinary co-design research to address complex and emerging health issues.
Publisher: AMPCo
Date: 18-11-2020
DOI: 10.5694/MJA2.50845
Publisher: Wiley
Date: 06-04-2020
DOI: 10.1111/JVH.13294
Publisher: Wiley
Date: 22-01-2019
DOI: 10.1111/JVH.13051
Publisher: Ovid Technologies (Wolters Kluwer Health)
Date: 05-2023
DOI: 10.1097/HEP.0000000000000430
Abstract: Hepatitis B (HBV) is a major cause of global morbidity and mortality, and the leading cause of liver cancer worldwide. Significant advances have recently been made toward the development of a finite HBV treatment that achieves permanent loss of HBsAg and HBV DNA (so-called “HBV cure”), which could provide the means to eliminate HBV as a public health threat. However, the HBV cure is just one step toward achieving WHO HBV elimination targets by 2030, and much work must be done now to prepare for the successful implementation of the HBV cure. In this review, we describe the required steps to rapidly scale-up future HBV cure equitably. We present key actions required for successful HBV cure implementation, integrated within the World Health Organization (WHO) Global Health Sector Strategy (GHSS) 2022–2030 framework. Finally, we highlight what can be done now to progress toward the 2030 HBV elimination targets using available tools to ensure that we are preparing, but not waiting, for the cure.
Publisher: Wiley
Date: 18-03-2021
DOI: 10.1111/JVH.13495
Publisher: Wiley
Date: 02-04-2023
DOI: 10.1111/ADD.16189
Abstract: Few studies of the impacts of the coronavirus disease 2019 (COVID‐19) public health measures on drug markets and drug use patterns have used longitudinal data. We aimed to examine whether COVID‐19 measures were associated with increases in meth hetamine price, decreases in meth hetamine use frequency and subsequent changes in secondary outcomes of other drug use frequency in metropolitan Melbourne and regional Victoria. Longitudinal analysis framework was used from a longitudinal cohort of people who use meth hetamine. Victoria state, Australia. One hundred eighty‐five VMAX study participants who reported a meth hetamine purchase after the onset of the pandemic were used for the price paid analysis. Meth hetamine or other drug use frequency analysis was performed using 277 participants who used meth hetamine during the pandemic or in the year before the pandemic. Price paid per gram of meth hetamine derived from the most recent purchase price and most recent purchase quantity. Frequency of meth hetamine and other drug use measured as the average number of days per week used in the last month. Compared with pre‐COVID‐19 period, meth hetamine prices increased by AUD351.63 ( P value .001) and by AUD456.51 ( P value .001) in Melbourne and regional Victoria, respectively, during the period in which the most intense public health measures were implemented in Victoria. Although prices decreased after harder restrictions were lifted (by AUD232.84, P value .001 and AUD263.68, P value .001, in Melbourne and regional Victoria, respectively), they remained higher than pre‐COVID‐19 levels. A complementary 76% decrease was observed in relation to meth hetamine use frequency in regional Victoria ( P value = 0.006) that was not offset by any changes in the frequency of use of other drugs such as alcohol, tobacco or other illicit drugs. COVID‐19 public health measures in Victoria state, Australia, appear to have been associated with major price changes in the meth hetamine market and decreased frequency of use of the drug.
Publisher: Public Library of Science (PLoS)
Date: 16-06-2023
DOI: 10.1371/JOURNAL.PGPH.0000902
Abstract: Hepatitis C (HCV) infection elimination in low- and middle-income countries requires decentralised HCV services to increase testing and linkage to care. The CT2 Study investigated patients’ views of access to and acceptance of two community-based HCV care models in Myanmar using a mixed-methods approach. Point-of-care HCV testing and general practitioner-initiated HCV treatment were provided at two community clinics in Yangon, Myanmar–the Burnet Institute’s (BI) clinic focused on people who inject drugs (PWID), and the Myanmar Liver Foundation’s (MLF) clinic focused on people with liver-related diseases. Study staff administered quantitative questionnaires to 633 participants receiving anti-HCV antibody testing. Purposive s ling was used to recruit 29 participants receiving direct-acting antiviral treatment for qualitative interviews. Among participants completing quantitative questionnaires, almost all reported the clinic location was convenient (447/463, 97%), waiting time was acceptable (455/463, 98%), and HCV antibody and RNA testing methods were acceptable (617/632, 98% and 592/605, 97% respectively). Nearly all participants were satisfied with their clinic’s services (444/463, 96%) and preferred same-day test results (589/632, 93%). BI clinic participants were more confident that they understood HCV antibody and RNA results MLF clinic participants were more comfortable disclosing their risk behaviour to staff and had slightly higher satisfaction with the overall care, privacy and secure storage of their information. In qualitative interviews, participants reported that flexible appointment scheduling, short wait times and rapid return of results increased the clinic’s accessibility. The simplified point-of-care testing and treatment procedures and supportive healthcare providers contributed to participants’ acceptance of the HCV care model. This decentralised community-based HCV testing and treatment model was highly accessible and acceptable to CT2 participants. Prioritizing patient-centred care, rapid provision of results, flexible appointments and convenient clinic locations can promote accessible and acceptable services which may in turn help accelerate progress in reaching HCV elimination targets.
Publisher: JMIR Publications Inc.
Date: 14-11-2018
Abstract: lthough we know that many young people watch online pornography and engage in sexting, there is limited literature examining their needs in relation to information on these highly sensitive and complex issues. Online resources exist however, we can find no evidence of any of them having been formally tested for usability within the target population. his study aimed to test the usability of a resource about online pornography and sexting among young people. emistructured interviews were conducted with 17 participants aged 15 to 29 years. e found that the SCOPE resource was perceived as trustworthy and credible because of its evidence-based content, nonjudgmental tone, and balanced perspectives. Multimedia and video content enhanced the layout and usability of the resource however, content relevance could be improved by targeting age and developmental stages. Participants identified resource sections such as Real Stories from young people as relevant and engaging. However, they raised issues with the translation of formative research findings relating to these stories into their final presentation. ur findings suggest that young people prefer online resources about complex issues, such as online pornography and sexting, if they are balanced in content and tone. Most importantly, in the context of responding to complex and sensitive issues such as these, co-design methods can ensure that young people are central to the development of resources and avoid gaps in translating research into practice. In the context of limited literature focusing on the usability of online resources about these topics, this paper provides important insights for public health practitioners working in this emerging space.
Publisher: Cold Spring Harbor Laboratory
Date: 03-2021
DOI: 10.1101/2021.02.23.21252315
Abstract: In clinical trials two vaccinations with mRNA vaccines have shown high efficacy in preventing COVID-19. However, in the context of a pandemic, the time to generation of protective immunity, the need for and timing of a second vaccination are matters of legitimate debate. This manuscript explores the efficacy and timing of the second dose COVID-19 vaccines, including a reanalysis of data from the Pfizer mRNA BNT162b2 mRNA SARS-CoV-2 vaccine phase 3 study. A non-weighted three-segment, two knot linear regression was fitted to the published cumulative infection incidence from the Pfizer BNT162b2 vaccine Phase III trial using the lspine routine in R. The optimal knot days were estimated through sensitivity analysis and the confidence limits for efficacy estimates were determined by Monte Carlo Simulations. This analysis showed the vaccine was effective from day 11 post first vaccination. The estimated efficacy over the period 11 to 28 days post first vaccination was 0.94 and there was no detectable increase in efficacy following the second vaccination. The efficacy post first vaccination substantially preceded the development of detectable serum neutralizing antibody. Strongly protective immunity develops rapidly following a single vaccination and at least in the short period covered by the timetable of the Phase III trial, there was no additional benefit from a second vaccination. This increases options for use of this vaccine, e.g., for ring fence vaccination, for use in travelers and for mass vaccination rollout. It highlights the need for further research into duration of immunity following a single vaccination and for understanding mechanisms of protection.
Publisher: Wiley
Date: 07-2020
DOI: 10.1002/JIA2.25589
Publisher: Public Library of Science (PLoS)
Date: 19-10-2021
DOI: 10.1371/JOURNAL.PMED.1003818
Abstract: Modelling suggests that achieving the WHO incidence target for hepatitis C virus (HCV) elimination in Pakistan could cost US$3.87 billion over 2018 to 2030. However, the economic benefits from integrating services or improving productivity were not included. We adapt a HCV transmission model for Pakistan to estimate the impact, costs, and cost-effectiveness of achieving HCV elimination (reducing annual HCV incidence by 80% by 2030) with stand-alone service delivery, or partially integrating one-third of initial HCV testing into existing healthcare services. We estimate the net economic benefits by comparing the required investment in screening, treatment, and healthcare management to the economic productivity gains from reduced HCV-attributable absenteeism, presenteeism, and premature deaths. We also calculate the incremental cost-effectiveness ratio (ICER) per disability-adjusted life year (DALY) averted for HCV elimination versus maintaining current levels of HCV treatment. This is compared to an opportunity cost-based willingness-to-pay threshold for Pakistan (US$148 to US$198/DALY). Compared to existing levels of treatment, scaling up screening and treatment to achieve HCV elimination in Pakistan averts 5.57 (95% uncertainty interval (UI) 3.80 to 8.22) million DALYs and 333,000 (219,000 to 509,000) HCV-related deaths over 2018 to 2030. If HCV testing is partially integrated, this scale-up requires an investment of US$1.45 (1.32 to 1.60) billion but will result in US$1.30 (0.94 to 1.72) billion in improved economic productivity over 2018 to 2030. This elimination strategy is highly cost-effective (ICER = US$29 per DALY averted) by 2030, with it becoming cost-saving by 2031 and having a net economic benefit of US$9.10 (95% UI 6.54 to 11.99) billion by 2050. Limitations include uncertainty around what level of integration is possible within existing primary healthcare services as well as a lack of Pakistan-specific data on disease-related healthcare management costs or productivity losses due to HCV. Investment in HCV elimination can bring about substantial societal health and economic benefits for Pakistan.
Publisher: JMIR Publications Inc.
Date: 31-03-2020
DOI: 10.2196/14190
Abstract: Recent research has investigated the utility of mobile phone–delivered interventions for reducing risky single-occasion drinking, also known as binge drinking. In the past five years, focus has been placed on ecological momentary interventions (EMIs), which aim to deliver intervention content in correspondence to real-time assessments of behavior, also known as ecological momentary assessments (EMAs). This study aims to assess the effect of a fully automated, tailored, mobile phone–delivered EMI termed Mobile Intervention for Drinking in Young people (MIDY) on young people's risky single-occasion drinking behavior. We will use a three-armed randomized controlled trial design to determine the impact of MIDY on peak consumption of alcohol among young people. A list of mobile telephone numbers for random digit dialing will be generated, and researchers will telephone potential participants to screen for eligibility. Participants will be randomized into one of three intervention groups. For 6 weeks, EMI, EMA, and attention control groups will complete hourly EMA surveys on their mobile phones on Friday and Saturday nights. EMI participants will receive personalized feedback in the form of text messages corresponding to their EMA survey responses, which focus on alcohol consumption, spending, and mood. EMA participants will not receive feedback. A third group will also complete EMA and receive feedback text messages at the same time intervals, but these will be focused on sedentary behavior and technology use. All groups will also complete a short survey on Saturday and Sunday mornings, with the primary outcome measure taken on Sunday mornings. A more detailed survey will be sent on the final Sunday of the 6-week period, and then again 1 year after recruitment. The primary outcome measure will be an observed change (ie, reduction) in the mean peak number of drinks consumed in a single night over the 6-week intervention period between the EMI and attention control groups as measured in the weekly EMA. We expect to see a greater reduction in mean peak drinking in the EMI group compared to that in the attention control group. As a secondary aim, we will assess whether mean peak drinking is reduced in the EMA group compared to the attention control group. We will use a random-effects mixed-modeling approach using maximum-likelihood estimation to provide estimates of differences in peak drinking across time periods between those receiving the intervention (EMI) and attention control participants. An intention-to-treat approach will be taken for the analysis. In iduals and study groups will be modeled as random and fixed factors, respectively. This study extends our previous work investigating the efficacy of a mobile EMI (MIDY) for reducing risky drinking among young adults in Australia, and will add to the expanding literature on the use of mobile interventions for reducing risky alcohol consumption. Australian New Zealand Clinical Trials Registration (ANZCTR): ACTRN12617001509358p www.anzctr.org.au/ACTRN12617001509358p.aspx DERR1-10.2196/14190
Publisher: JMIR Publications Inc.
Date: 25-03-0088
DOI: 10.2196/44813
Abstract: Peers are an important determinant of health and well-being during late adolescence however, there is limited quantitative research examining peer influence. Previous peer network research with adolescents faced methodological limitations and difficulties recruiting young people. This study aims to determine whether a web-based peer network survey is effective at recruiting adolescent peer networks by comparing 2 strategies for reimbursement. This study will use a 2-group randomized trial design to test the effectiveness of reimbursements for peer referral in a web-based cross-sectional peer network survey. Young people aged 16-18 years recruited through Instagram, Snapchat, and a survey panel will be randomized to receive either scaled group reimbursement (the experimental group) or fixed in idual reimbursement (the control group). All participants will receive a reimbursement of Aus $5 (US $3.70) for their own survey completion. In the experimental group (scaled group reimbursement), all participants within a peer network will receive an additional Aus $5 (US $3.70) voucher for each referred participant who completes the study, up to a maximum total value of Aus $30 (US $22.20) per participant. In the control group (fixed in idual reimbursement), participants will only be reimbursed for their own survey completion. Participants’ peer networks are assessed during the survey by asking about their close friends. A unique survey link will be generated to share with the participant’s nominated friends for the recruitment of secondary participants. Outcomes are the proportion of a participant’s peer network and the number of referred peers who complete the survey. The required s le size is 306 primary participants. Using a multilevel logistic regression model, we will assess the effect of the reimbursement intervention on the proportion of primary participants’ close friends who complete the survey. The secondary aim is to determine participant characteristics that are associated with successfully recruiting close friends. Young people aged 16-18 years were involved in the development of the study design through focus groups and interviews (n=26). Participant recruitment commenced in 2022. A longitudinal web-based social network study could provide important data on how social networks and their influence change over time. This trial aims to determine whether scaled group reimbursement can increase the number of peers referred. The outcomes of this trial will improve the recruitment of young people to web-based network studies of sensitive health issues. DERR1-10.2196/44813
Publisher: Informa UK Limited
Date: 03-09-2021
Publisher: Wiley
Date: 05-10-2021
DOI: 10.1111/JVH.13619
Publisher: Springer Science and Business Media LLC
Date: 18-03-2022
DOI: 10.1186/S12889-022-12907-5
Abstract: Hepatitis B is a chronic viral infection, a leading cause of primary liver cancer and identified as a major public health priority by the World Health Organization. Despite a high proportion of people in Australia who have been diagnosed with hepatitis B, significant gaps remain in health care access and in accurate knowledge about hepatitis B. Most people with hepatitis B in Australia were born in China, where the infection has an intergenerational impact with significant social implications resulting from the infection. Understanding how people of Chinese ethnicity with hepatitis B understand and respond to hepatitis B is imperative for reducing morbidity, mortality, and the personal and social impact of the infection. Qualitative semi-structured interviews with people with hepatitis B of Chinese ethnicity recruited through a specialist service identified the advice people with hepatitis B thought was important enough to inform the experience of people newly diagnosed with hepatitis B. A thematic analysis of the data privileged the lived experience of participants and their personal, rather than clinical, explanations of the virus. Hepatitis B infection had psychological and physical consequences that were informed by cultural norms, and to which people had responded to with significant behavioural change. Despite this cohort being engaged with specialist clinical services with access to the most recent, comprehensive, and expert information, much of the advice people with hepatitis B identified as important for living with hepatitis B was not based on biomedical understandings. Key suggestions from people with hepatitis B were to form sustainable clinical relationships, develop emotional resilience, make dietary changes, regulate energy, and issues related to disclosure. The study highlights conflicts between biomedical and public health explanations and the lived experience of hepatitis B among people of Chinese ethnicity in Australia. Beliefs about hepatitis B are embedded within cultural understandings of health that can conflict with bio-medical explanations of the infection. Acknowledging these perspectives provides for insightful communication between health services and their clients, and the development of nuanced models of care informed by the experience of people with hepatitis B.
Publisher: JMIR Publications Inc.
Date: 18-02-2019
Abstract: assive surveillance is the principal method of sexually transmitted infection (STI) and blood-borne virus (BBV) surveillance in Australia whereby positive cases of select STIs and BBVs are notified to the state and territory health departments. A major limitation of passive surveillance is that it only collects information on positive cases and notifications are heavily dependent on testing patterns. Denominator testing data are important in the interpretation of notifications. he aim of this study is to establish a national pathology laboratory surveillance system, part of a larger national sentinel surveillance system called ACCESS (the Australian Collaboration for Coordinated Enhanced Sentinel Surveillance). ACCESS is designed to utilize denominator testing data to understand trends in case reporting and monitor the uptake and outcomes of testing for STIs and BBVs. CCESS involves a range of clinical sites and pathology laboratories, each with a separate method of recruitment, data extraction, and data processing. This paper includes pathology laboratory sites only. First established in 2007 for chlamydia only, ACCESS expanded in 2012 to capture all diagnostic and clinical monitoring tests for STIs and BBVs, initially from pathology laboratories in New South Wales and Victoria, Australia, to at least one public and one private pathology laboratory in all Australian states and territories in 2016. The pathology laboratory sentinel surveillance system incorporates a longitudinal cohort design whereby all diagnostic and clinical monitoring tests for STIs and BBVs are collated from participating pathology laboratories in a line-listed format. An anonymous, unique identifier will be created to link patient data within and between participating pathology laboratory databases and to clinical services databases. Using electronically extracted, line-listed data, several indicators for each STI and BBV can be calculated, including the number of tests, unique number of in iduals tested and retested, test yield, positivity, and incidence. o date, over 20 million STI and BBV laboratory test records have been extracted for analysis for surveillance monitoring nationally. Recruitment of laboratories is ongoing to ensure appropriate coverage for each state and territory reporting of indicators will occur in 2019 with publication to follow. he ACCESS pathology laboratory sentinel surveillance network is a unique surveillance system that collects data on diagnostic testing, management, and care for and of STIs and BBVs. It complements the ACCESS clinical network and enhances Australia’s capacity to respond to STIs and BBVs. R1-10.2196/13625
Publisher: JMIR Publications Inc.
Date: 22-08-2019
Abstract: he impact of viewing pornography at a young age on the sexual health of subgroups of young people is an important public health issue. However, the topic is complex and extremely sensitive, and best practices for research and harm reduction are yet to be defined. Drawing on cross-disciplinary approaches, such as co-design, is one way to achieve a better understanding of the issue among vulnerable young people and to create needs-based and evidence-informed digital resources to promote pornography literacy. he objective of this study was to co-design a relevant, usable, and acceptable digital prototype to address the pornography literacy needs of vulnerable young people. n total, 17 young people aged between 14 and 23 years who were engaged in youth services programs or alternative education programs were recruited to participate in 4 co-design workshops with a multidisciplinary design team. lthough the participants could identify problems with pornography and critique its messages, they lacked the information to understand alternative healthy attitudes and behaviors. A digital resource that provides detailed and practical information about sex, sexual ethics, and relationships may help vulnerable young people to identify and contrast with any problematic messages they receive from both pornography and society. Embedding this information with pornography literacy messages may be a more effective way of addressing underlying attitudes. Acknowledging information-seeking patterns and leveraging user interaction patterns from commonly used digital platforms among users may enhance engagement with resources. Importantly, digital platforms are perceived among this group as a source of anonymous secondary information but would not be organically accessed among this group without face-to-face conversations as an access point. his paper highlights the potential for pornography literacy to be embedded within real and practical information about having sex, navigating sexuality, and healthy relationships. The study findings include important recommendations for the conceptualization of digital pornography literacy programs and opportunities for cross-disciplinary co-design research to address complex and emerging health issues.
Publisher: Wiley
Date: 17-09-2021
DOI: 10.1111/JVH.13612
Abstract: Whilst the testing and treatment of people who inject drugs (PWID) in Australia is a priority for local hepatitis C (HCV) elimination efforts, perceived stigma related to injecting drug use (IDU) has been identified as a major barrier for PWID engaging in health services. We used data from the EC Experience cohort study to explore associations between IDU-related perceived stigma and the number of different health services accessed by PWID in Melbourne, Australia. Data from the baseline questionnaire were used. Primary outcome was self-reported experience of stigma due to IDU (never, rarely, sometimes, often, always) in the previous 12 months. An ordinal logistic regression model assessed the association between stigma experienced and the number of different health services used (1-2, 3-4, 5-6, 7-10 different services) adjusted for recent IDU and key socio-demographics. Between September 2018 and February 2020, 281 participants were recruited from four health services. Sixty-nine per cent were male, median age was 42, 83% reported past-month IDU, 34% had never tested/tested >12 months, 8% tested negative <12 months, 43% were HCV-positive but not treated and 16% had been treated. Those accessing 5-6 services had 2.2 times greater odds of experiencing stigma (95% CI 0.86-6.65) compared with those using <5 services and those reporting 7-10 services had 2.43 times greater odds of experiencing stigma (95% CI 0.85-6.92) compared with those accessing <7 services. In conclusion, experiences of stigma may not necessarily be a barrier for PWID to access health services, but high rates of health service use may further expose, exacerbate or exaggerate stigma amongst PWID. Further examination of how stigma may be in/directly impact on hepatitis C treatment uptake is important and place-based interventions aimed at reducing stigma experienced by PWID may be needed.
Publisher: JMIR Publications Inc.
Date: 13-08-2019
DOI: 10.2196/12824
Abstract: Although we know that many young people watch online pornography and engage in sexting, there is limited literature examining their needs in relation to information on these highly sensitive and complex issues. Online resources exist however, we can find no evidence of any of them having been formally tested for usability within the target population. This study aimed to test the usability of a resource about online pornography and sexting among young people. Semistructured interviews were conducted with 17 participants aged 15 to 29 years. We found that the SCOPE resource was perceived as trustworthy and credible because of its evidence-based content, nonjudgmental tone, and balanced perspectives. Multimedia and video content enhanced the layout and usability of the resource however, content relevance could be improved by targeting age and developmental stages. Participants identified resource sections such as Real Stories from young people as relevant and engaging. However, they raised issues with the translation of formative research findings relating to these stories into their final presentation. Our findings suggest that young people prefer online resources about complex issues, such as online pornography and sexting, if they are balanced in content and tone. Most importantly, in the context of responding to complex and sensitive issues such as these, co-design methods can ensure that young people are central to the development of resources and avoid gaps in translating research into practice. In the context of limited literature focusing on the usability of online resources about these topics, this paper provides important insights for public health practitioners working in this emerging space.
Publisher: Wiley
Date: 18-08-2022
DOI: 10.1002/HSR2.719
Abstract: In moving towards the elimination of hepatitis C virus (HCV) infection among people living with HIV, understanding HCV transmission patterns may provide insights to guide and evaluate interventions. In this study, we evaluated patterns of, and factors associated with HCV phylogenetic clustering among people living with HIV/HCV co‐infection in Australia in the direct‐acting antiviral era. HCV RNA was extracted from dried blood spot (DBS) s les collected between 2014 and 2018 in the CEASE cohort study. The HCV Core‐E2 region was lified by a polymerase chain reaction and Sanger sequenced. Maximum likelihood phylogenetic trees (1000 bootstrap replicates) were used to identify patterns of clustering (3% genetic distance threshold). Mixed‐effects logistic regression was used to determine correlates of phylogenetic clustering. Factors assessed were sexual risk behavior, education, injecting drug use, housing, employment, HIV viral load, age, sex, and sexuality. Phylogenetic trees were reconstructed for HCV subtype 1a ( n = 139) and 3a ( n = 63) sequences, with 29% (58/202) in a pair or cluster. Overall ( n = 202), phylogenetic clustering was positively associated with younger age (under 40 adjusted odds ratio [aOR] 2.52, 95% confidence interval [CI] 1.20–5.29), and among gay and bisexual men ( n = 168), was positively associated with younger age (aOR 2.61, 95% CI 1.10–6.19), higher education (aOR 2.58, 95% CI 1.09–6.13), and reporting high‐risk sexual behavior (aOR 3.94, 95% CI 1.31–11.84). During follow‐up, five reinfections were observed, but none were in phylogenetic clusters. This study found a high proportion of phylogenetic relatedness, predominantly among younger people and gay and bisexual men reporting high‐risk sexual behavior. Despite this, few reinfections were observed, and reinfections demonstrated little relationship with known clusters. These findings highlight the importance of rapid HCV treatment initiation, together with monitoring of the phylogeny.
Publisher: Wiley
Date: 06-11-2019
DOI: 10.1111/JVH.13020
Abstract: Hepatitis C virus contributes to substantial and growing mortality and morbidity. Fortunately, the advent of highly effective interferon-free direct-acting antiviral (DAA) medications and new diagnostic tests has the potential to dramatically alter the epidemiologic trajectory of hepatitis C, particularly for "hard-to-reach" populations. Treatment advances and cure will also likely alter the in idual experience of living with hepatitis C. However, it is not yet known in what capacity. This paper provides an overview of the population-level impact of DAA treatment, highlighting the need to further our understanding of the impact of treatment on behaviour, health and wellbeing through lived experience and more sensitive patient-reported outcome measures.
Publisher: JMIR Publications Inc.
Date: 14-07-2020
DOI: 10.2196/16863
Abstract: The advent of direct-acting antivirals (DAAs) and point-of-care (POC) testing platforms for hepatitis C allow for the decentralization of care to primary care settings. In many countries, access to DAAs is generally limited to tertiary hospitals, with limited published research documenting decentralized models of care in low-and middle-income settings. This study aims to assess the feasibility, acceptability, effectiveness, and cost-effectiveness of decentralized community-based POC testing and DAA therapy for hepatitis C among people who inject drugs and the general population in Yangon, Myanmar. Rapid diagnostic tests for anti-hepatitis C antibodies were carried out on-site and, if reactive, were followed by POC GeneXpert hepatitis C RNA polymerase chain reaction tests. External laboratory blood tests to exclude other major health issues were undertaken. Results were given to participants at their next appointment, with the participants commencing DAA therapy that day if a specialist review was not required. Standard clinical data were collected, and the participants completed behavioral questionnaires. The primary outcome measures are the proportion of participants receiving GeneXpert hepatitis C RNA test, the proportion of participants commencing DAA therapy, the proportion of participants completing DAA therapy, and the proportion of participants achieving sustained virological response 12 weeks after completing DAA therapy. Recruitment was completed on September 30, 2019. Monitoring visits and treatment outcome visits are scheduled to continue until June 2020. This feasibility study in Myanmar contributes to the evidence gap for community-based hepatitis C care in low- and middle-income settings. Evidence from this study will inform the scale-up of hepatitis C treatment programs in Myanmar and globally.
Publisher: Elsevier BV
Date: 03-2021
Publisher: JMIR Publications Inc.
Date: 25-05-2017
DOI: 10.2196/RESPROT.6760
Publisher: Springer Science and Business Media LLC
Date: 16-07-2021
DOI: 10.1038/S41467-021-24673-W
Abstract: Health systems have improved their abilities to identify, diagnose, treat and, increasingly, achieve viral suppression among people living with HIV (PLHIV). Despite these advances, a higher burden of multimorbidity and poorer health-related quality of life are reported by many PLHIV in comparison to people without HIV. Stigma and discrimination further exacerbate these poor outcomes. A global multidisciplinary group of HIV experts developed a consensus statement identifying key issues that health systems must address in order to move beyond the HIV field’s longtime emphasis on viral suppression to instead deliver integrated, person-centered healthcare for PLHIV throughout their lives.
Publisher: JMIR Publications Inc.
Date: 29-05-2020
DOI: 10.2196/15096
Abstract: Female sex workers (FSWs) have high rates of both unintended pregnancy and HIV, but few health promotion interventions address their contraceptive needs or other sexual and reproductive health and rights (SRHR) concerns. A broader approach integrates contraceptive promotion with HIV and sexually transmitted infection (STI) prevention and management, alcohol awareness, gender-based violence and rights, and health care utilization. The Women’s Health Intervention using SMS for Preventing Pregnancy (WHISPER) mobile phone intervention uses a participatory development approach and behavior change theory to address these high-priority concerns of FSWs in Mombasa, Kenya. This paper aimed to (1) describe the process of development of the WHISPER intervention, its theoretical framework, key content domains and strategies and (2) explore workshop participants’ responses to the proposed intervention, particularly with regard to message content, behavior change constructs, and feasibility and acceptability. The research team worked closely with FSWs in two phases of intervention development. First, we drafted content for three different types of messages based on a review of the literature and behavior change theories. Second, we piloted the intervention by conducting six workshops with 42 FSWs to test and refine message content and 12 interviews to assess the technical performance of the intervention. Workshop data were thematically analyzed using a mixed deductive and inductive approach. The intervention framework specified six SRHR domains that were viewed as highly relevant by FSWs. Reactions to intervention content revealed that social cognitive strategies to improve knowledge, outcome expectations, skills, and self-efficacy resonated well with workshop participants. Participants found the content empowering, and most said they would share the messages with others. The refined intervention was a 12-month SMS program consisting of informational and motivational messages, role model stories portraying behavior change among FSWs, and on-demand contraceptive information. Our results highlight the need for health promotion interventions that incorporate broader components of SRHR, not only HIV prevention. Using a theory-based, participatory approach, we developed a digital health intervention that reflects the complex reality of FSWs’ lives and provides a feasible, acceptable approach for addressing SRHR concerns and needs. FSWs may benefit from health promotion interventions that provide relevant, actionable, and engaging content to support behavior change.
Publisher: Public Library of Science (PLoS)
Date: 12-12-2022
DOI: 10.1371/JOURNAL.PONE.0272401
Abstract: Little is known about the emotional experience and benefits of undertaking direct acting antiviral (DAA) treatment for hepatitis C. A better understanding of in idual treatment outcomes can inform acceptable treatment delivery and promotion. We aimed to explore participant-perceived emotional benefits and transformations throughout DAA treatment among people who inject drugs, who were initiating treatment. Participants were recruited from either a community based clinical trial or community health clinics. Semi structured interviews were conducted with each participant before, during and following treatment. Interviews focussed on treatment perceptions, physical and mental wellbeing and modifiable health behaviours. Interviews were recorded, transcribed verbatim and thematically analysed. Participant and cohort matrices were produced to assess at which time point themes were present and whether themes changed or remained stable over time. This paper presents analysis from 19 participants interviewed between 2017–2019. Most participants were male, with no or mild fibrosis. At baseline, all but one participant had injected drugs in the past month. Three themes relating to the emotional wellbeing and behaviour change described a common treatment experience ‘hopes for better wellbeing’, ‘lifting the weight’ and ‘closing the chapter’. Participants were hopeful treatment would improve their emotional wellbeing. Hopes were actualised during treatment as participants began to feel uncertainty and stress easing. Completing treatment improved some participants perceptions of self. Some participants consciously changed their injecting behaviours during treatment. Undertaking and completing treatment was an emotionally and behaviourally transformative period. Participant perceived benefits should be used to inform how treatment benefit is conceptualised and how treatment is promoted in primary care settings.
Publisher: Wiley
Date: 22-09-2018
DOI: 10.1111/LIV.13949
Publisher: Wiley
Date: 09-2023
DOI: 10.1002/JIA2.26168
Publisher: Wiley
Date: 14-03-2023
DOI: 10.5694/MJA2.51885
Abstract: To evaluate the feasibility of testing and treating people who inject drugs at a supervised injecting facility for hepatitis C virus (HCV) infection. Retrospective cohort study. People who inject drugs who attended the Melbourne supervised injecting facility, 30 June 2018 – 30 June 2020. Proportion of people tested for hepatitis C proportions of people positive for anti‐HCV antibody and HCV RNA, and of eligible people prescribed direct‐acting antiviral (DAA) treatment sustained virological response twelve weeks or more after treatment completion. Of 4649 people who attended the supervised injecting facility during 2018–20, 321 were tested for hepatitis C (7%) 279 were anti‐HCV antibody‐positive (87%), of whom 143 (51%) were also HCV RNA‐positive. Sixty‐four of 321 had previously been treated for hepatitis C (20%), 21 had clinically identified cirrhosis (7%), eight had hepatitis B infections (2%), and four had human immunodeficiency virus infections (1%). In multivariate analyses, people tested for hepatitis C were more likely than untested clients to report psychiatric illness (adjusted odds ratio [aOR], 9.65 95% confidence interval [CI], 7.26–12.8), not have a fixed address (aOR, 1.59 95% CI, 1.18–2.14), and to report significant alcohol use (aOR, 1.57 95% CI, 1.06–2.32). The median number of injecting facility visits was larger for those tested for hepatitis C (101 interquartile range [IQR], 31–236) than for those not tested (20 IQR, 3–90). DAA treatment was prescribed for 126 of 143 HCV RNA‐positive clients (88%) 41 of 54 with complete follow‐up data were cured (76%). People who attend supervised injecting facilities can be tested and treated for hepatitis C on site. Models that provide streamlined, convenient hepatitis C care promote engagement with treatment in a group in which the prevalence of hepatitis C is high.
Publisher: Wiley
Date: 21-03-2022
DOI: 10.1111/JVH.13664
Abstract: Point‐of‐care (POC) diagnostics overcome barriers to conventional hepatitis C (HCV) testing in people who inject drugs. This study assessed impact on hepatitis C treatment uptake of POC HCV testing in needle and syringe exchange programs (NSPs). Rapid EC was a single‐arm interventional pilot study of HCV POC testing conducted in three inner‐city community clinics with NSPs. Twelve months after the POC testing, a retrospective medical record and Pharmaceutical Benefits Scheme audit was performed to determine the number of HCV RNA‐positive participants who were prescribed HCV treatment. 70 HCV RNA‐positive Rapid EC study participants were included. 44 (63%) were prescribed DAAs 26 (59%) completed treatment and 15 (34%) had SVR testing, all of whom were cured. Age ≥ 40 years (aOR 3.45, 95% CI 1.10–11.05, p = .03) and secondary school education (aOR 5.8, 95% CI 1.54–21.80, p = .009) had higher likelihood of being prescribed DAAs, whereas homelessness was inversely associated with prescription of DAAs (aOR 0.30, 95% CI 0.09–1.04, p = .057). Median time to receive a DAA script from date of diagnosis was seven days (IQR 0 to 14 days), and time to filling the DAA prescription was 2 days (IQR 0–12 days). In conclusion, provision of POC testing through NSPs was effective for linking new clients to HCV treatment and reduced the time to treatment. Further studies are needed to define the most cost‐effective use of POC testing in models of care for people who inject drugs to increase HCV treatment uptake.
Publisher: Public Library of Science (PLoS)
Date: 10-03-2020
Publisher: AMPCo
Date: 23-11-2020
DOI: 10.5694/MJA2.50872
Publisher: Wiley
Date: 28-08-2018
DOI: 10.1111/JVH.12975
Abstract: Modelling suggests that more frequent screening of people who inject drugs (PWID) and an improved care cascade are required to achieve the WHO hepatitis C virus (HCV) elimination target of an 80% reduction in incidence by 2030. We determined the testing frequencies (2-yearly, annually, 6-monthly and 3-monthly) and retention in care required among PWID to achieve the HCV incidence reduction target through treatment as prevention in low (25%), medium (50%) and high (75%) chronic HCV prevalence settings. Mathematical modelling of HCV transmission among PWID, capturing testing, treatment and other features of the care cascade were employed. In low-prevalence settings, 2-yearly antibody testing of PWID was estimated to reach the elimination target by 2027-2030 depending on retention in care, with annual testing reducing the time by up to 3 years. In medium-prevalence settings, if close to 90% testing coverage were achieved, then annual antibody testing of PWID would be sufficient. If testing coverage were lower (80%), 6-monthly antibody testing with at least 70% retention in care or annual HCV RNA/cAg testing would be required. In high-prevalence settings, even 3-monthly HCV RNA/cAg testing of PWID was unable to achieve the incidence reduction target. Thus, for geographical areas or subpopulations with high prevalence, WHO incidence targets are unlikely to be met without 3-monthly RNA/cAg testing accompanied by other prevention measures. Novel testing strategies, such as rapid point-of-care antibody testing or replacing antibody testing with RNA/cAg tests as a screening tool, can provide additional population-level impacts to compensate for imperfect follow-up or testing coverage.
Publisher: JMIR Publications Inc.
Date: 20-11-2018
DOI: 10.2196/11028
Publisher: JMIR Publications Inc.
Date: 24-06-2020
DOI: 10.2196/16757
Abstract: The Australian Collaboration for Coordinated Enhanced Sentinel Surveillance (ACCESS) was established to monitor national testing and test outcomes for blood-borne viruses (BBVs) and sexually transmissible infections (STIs) in key populations. ACCESS extracts deidentified data from sentinel health services that include general practice, sexual health, and infectious disease clinics, as well as public and private laboratories that conduct a large volume of BBV/STI testing. An important attribute of ACCESS is the ability to accurately link in idual-level records within and between the participating sites, as this enables the system to produce reliable epidemiological measures. The aim of this study was to evaluate the use of GRHANITE software in ACCESS to extract and link deidentified data from participating clinics and laboratories. GRHANITE generates irreversible hashed linkage keys based on patient-identifying data captured in the patient electronic medical records (EMRs) at the site. The algorithms to produce the data linkage keys use probabilistic linkage principles to account for variability and completeness of the underlying patient identifiers, producing up to four linkage key types per EMR. Errors in the linkage process can arise from imperfect or missing identifiers, impacting the system’s integrity. Therefore, it is important to evaluate the quality of the linkages created and evaluate the outcome of the linkage for ongoing public health surveillance. Although ACCESS data are deidentified, we created two gold-standard datasets where the true match status could be confirmed in order to compare against record linkage results arising from different approaches of the GRHANITE Linkage Tool. We reported sensitivity, specificity, and positive and negative predictive values where possible and estimated specificity by comparing a history of HIV and hepatitis C antibody results for linked EMRs. Sensitivity ranged from 96% to 100%, and specificity was 100% when applying the GRHANITE Linkage Tool to a small gold-standard dataset of 3700 clinical medical records. Medical records in this dataset contained a very high level of data completeness by having the name, date of birth, post code, and Medicare number available for use in record linkage. In a larger gold-standard dataset containing 86,538 medical records across clinics and pathology services, with a lower level of data completeness, sensitivity ranged from 94% to 95% and estimated specificity ranged from 91% to 99% in 4 of the 6 different record linkage approaches. This study’s findings suggest that the GRHANITE Linkage Tool can be used to link deidentified patient records accurately and can be confidently used for public health surveillance in systems such as ACCESS.
Publisher: JMIR Publications Inc.
Date: 28-03-2019
Abstract: ecent research has investigated the utility of mobile phone–delivered interventions for reducing risky single-occasion drinking, also known as binge drinking. In the past five years, focus has been placed on ecological momentary interventions (EMIs), which aim to deliver intervention content in correspondence to real-time assessments of behavior, also known as ecological momentary assessments (EMAs). his study aims to assess the effect of a fully automated, tailored, mobile phone–delivered EMI termed Mobile Intervention for Drinking in Young people (MIDY) on young people's risky single-occasion drinking behavior. e will use a three-armed randomized controlled trial design to determine the impact of MIDY on peak consumption of alcohol among young people. A list of mobile telephone numbers for random digit dialing will be generated, and researchers will telephone potential participants to screen for eligibility. Participants will be randomized into one of three intervention groups. For 6 weeks, EMI, EMA, and attention control groups will complete hourly EMA surveys on their mobile phones on Friday and Saturday nights. EMI participants will receive personalized feedback in the form of text messages corresponding to their EMA survey responses, which focus on alcohol consumption, spending, and mood. EMA participants will not receive feedback. A third group will also complete EMA and receive feedback text messages at the same time intervals, but these will be focused on sedentary behavior and technology use. All groups will also complete a short survey on Saturday and Sunday mornings, with the primary outcome measure taken on Sunday mornings. A more detailed survey will be sent on the final Sunday of the 6-week period, and then again 1 year after recruitment. he primary outcome measure will be an observed change (ie, reduction) in the mean peak number of drinks consumed in a single night over the 6-week intervention period between the EMI and attention control groups as measured in the weekly EMA. We expect to see a greater reduction in mean peak drinking in the EMI group compared to that in the attention control group. As a secondary aim, we will assess whether mean peak drinking is reduced in the EMA group compared to the attention control group. We will use a random-effects mixed-modeling approach using maximum-likelihood estimation to provide estimates of differences in peak drinking across time periods between those receiving the intervention (EMI) and attention control participants. An intention-to-treat approach will be taken for the analysis. In iduals and study groups will be modeled as random and fixed factors, respectively. his study extends our previous work investigating the efficacy of a mobile EMI (MIDY) for reducing risky drinking among young adults in Australia, and will add to the expanding literature on the use of mobile interventions for reducing risky alcohol consumption. ustralian New Zealand Clinical Trials Registration (ANZCTR): ACTRN12617001509358p www.anzctr.org.au/ACTRN12617001509358p.aspx ERR1-10.2196/14190
Publisher: Public Library of Science (PLoS)
Date: 21-07-2021
DOI: 10.1371/JOURNAL.PONE.0253510
Abstract: Whilst evidence of use of face masks in reducing COVID-19 cases is increasing, the impact of mandatory use across a large population has been difficult to assess. Introduction of mandatory mask use on July 22, 2020 during a resurgence of COVID-19 in Melbourne, Australia created a situation that facilitated an assessment of the impact of the policy on the epidemic growth rate as its introduction occurred in the absence of other changes to restrictions. Exponential epidemic growth or decay rates in daily COVID-19 diagnoses were estimated using a non-weighted linear regression of the natural logarithm of the daily cases against time, using a linear spline model with one knot (lspline package in R v 3.6.3). The model’s two linear segments pivot around the hinge day, on which the mask policy began to take effect, 8 days following the introduction of the policy. We used two forms of data to assess change in mask usage: images of people wearing masks in public places obtained from a major media outlet and population-based survey data. Potential confounding factors (including daily COVID-19 tests, number of COVID-19 cases among population subsets affected differentially by the mask policy–e.g., healthcare workers) were examined for their impact on the results. Daily cases fitted an exponential growth in the first log-linear segment (k = +0.042, s.e. = 0.007), and fitted an exponential decay in the second (k = -0.023, s.e. = 0.017) log-linear segment. Over a range of reported serial intervals for SARS-CoV-2 infection, these growth rates correspond to a 22–33% reduction in an effective reproduction ratio before and after mandatory mask use. Analysis of images of people in public spaces showed mask usage rose from approximately 43% to 97%. Analysis of survey data found that on the third day before policy introduction, 44% of participants reported “often” or “always” wearing a mask on the fourth day after, 100% reported “always” doing so. No potentially confounding factors were associated with the observed change in growth rates. The mandatory mask use policy substantially increased public use of masks and was associated with a significant decline in new COVID-19 cases after introduction of the policy. This study strongly supports the use of masks for controlling epidemics in the broader community.
Publisher: Wiley
Date: 28-08-2021
DOI: 10.1111/JVH.13596
Abstract: Financial incentives may reduce opportunity costs associated with people who become lost to follow‐up in hepatitis C treatment programs. We estimated the impact that different financial incentive amounts would need to have on retention in care to maintain the same unit cost per (1) RNA‐positive person completing testing (defined as awareness of RNA status) and (2) RNA diagnosed person initiating treatment. Costing data were obtained from a 2019 community‐based testing c aign focused on engaging people who inject drugs. For different financial incentive amounts, we modelled the corresponding improvements in retention in care that would be needed to maintain the same overall (1) unit cost per testing completion and (2) unit cost per treatment initiation. In the testing c aign, the unit cost per RNA‐positive person completing testing was A$3215 and the unit cost per RNA diagnosed person initiating treatment was A$1055. Modelling found that an incentive of A$500 per RNA‐positive person completing testing would result in more people completing testing for the same unit cost if the percentage of attendees receiving their test results increased from 63% to 74%. An incentive of A$200 per RNA diagnosed person initiating treatment would result in more people initiating treatment for the same unit cost if the percentage initiating treatment increased from 67% to 83%. Monetary incentives for completing testing and initiating treatment may be an effective way to increase retention in care without increasing the overall unit cost of completing testing/initiating treatment.
Publisher: Elsevier BV
Date: 08-2020
Publisher: Informa UK Limited
Date: 2021
Publisher: JMIR Publications Inc.
Date: 21-10-2019
Abstract: he Australian Collaboration for Coordinated Enhanced Sentinel Surveillance (ACCESS) was established to monitor national testing and test outcomes for blood-borne viruses (BBVs) and sexually transmissible infections (STIs) in key populations. ACCESS extracts deidentified data from sentinel health services that include general practice, sexual health, and infectious disease clinics, as well as public and private laboratories that conduct a large volume of BBV/STI testing. An important attribute of ACCESS is the ability to accurately link in idual-level records within and between the participating sites, as this enables the system to produce reliable epidemiological measures. he aim of this study was to evaluate the use of GRHANITE software in ACCESS to extract and link deidentified data from participating clinics and laboratories. GRHANITE generates irreversible hashed linkage keys based on patient-identifying data captured in the patient electronic medical records (EMRs) at the site. The algorithms to produce the data linkage keys use probabilistic linkage principles to account for variability and completeness of the underlying patient identifiers, producing up to four linkage key types per EMR. Errors in the linkage process can arise from imperfect or missing identifiers, impacting the system’s integrity. Therefore, it is important to evaluate the quality of the linkages created and evaluate the outcome of the linkage for ongoing public health surveillance. lthough ACCESS data are deidentified, we created two gold-standard datasets where the true match status could be confirmed in order to compare against record linkage results arising from different approaches of the GRHANITE Linkage Tool. We reported sensitivity, specificity, and positive and negative predictive values where possible and estimated specificity by comparing a history of HIV and hepatitis C antibody results for linked EMRs. ensitivity ranged from 96% to 100%, and specificity was 100% when applying the GRHANITE Linkage Tool to a small gold-standard dataset of 3700 clinical medical records. Medical records in this dataset contained a very high level of data completeness by having the name, date of birth, post code, and Medicare number available for use in record linkage. In a larger gold-standard dataset containing 86,538 medical records across clinics and pathology services, with a lower level of data completeness, sensitivity ranged from 94% to 95% and estimated specificity ranged from 91% to 99% in 4 of the 6 different record linkage approaches. his study’s findings suggest that the GRHANITE Linkage Tool can be used to link deidentified patient records accurately and can be confidently used for public health surveillance in systems such as ACCESS.
Publisher: JMIR Publications Inc.
Date: 11-05-2018
Abstract: ew biomedical prevention interventions make the control or elimination of some blood-borne viruses (BBVs) and sexually transmissible infections (STIs) increasingly feasible. In response, the World Health Organization and governments around the world have established elimination targets and associated timelines. To monitor progress toward such targets, enhanced systems of data collection are required. This paper describes the Australian Collaboration for Coordinated Enhanced Sentinel Surveillance (ACCESS). his study aims to establish a national surveillance network designed to monitor public health outcomes and evaluate the impact of strategies aimed at controlling BBVs and STIs. CCESS is a sentinel surveillance system comprising health services (sexual health clinics, general practice clinics, drug and alcohol services, community-led testing services, and hospital outpatient clinics) and pathology laboratories in each of Australia’s 8 states and territories. Scoping was undertaken in each jurisdiction to identify sites that provide a significant volume of testing or management of BBVs or STIs or to see populations with particular risks for these infections (“priority populations”). Nationally, we identified 115 health services and 24 pathology laboratories as relevant to BBVs or STIs purposive s ling was undertaken. As of March 2018, we had recruited 92.0% (104/113) of health services and 71% (17/24) of laboratories among those identified as relevant to ACCESS. ACCESS is based on the regular and automated extraction of deidentified patient data using specialized software called GRHANITE, which creates an anonymous unique identifier from patient details. This identifier allows anonymous linkage between and within participating sites, creating a national cohort to facilitate epidemiological monitoring and the evaluation of clinical and public health interventions. etween 2009 and 2017, 1,171,658 in idual patients attended a health service participating in ACCESS network comprising 7,992,241 consultations. Regarding those with unique BBV and STI-related health needs, ACCESS captured data on 366,441 young heterosexuals, 96,985 gay and bisexual men, and 21,598 people living with HIV. CCESS is a unique system with the ability to track efforts to control STIs and BBVs—including through the calculation of powerful epidemiological indicators—by identifying response gaps and facilitating the evaluation of programs and interventions. By anonymously linking patients between and within services and over time, ACCESS has exciting potential as a research and evaluation platform. Establishing a national health surveillance system requires close partnerships across the research, government, community, health, and technology sectors. ERR1-10.2196/11028
Publisher: Wiley
Date: 08-2017
DOI: 10.1111/JVH.12741
Abstract: Inadequate response to injecting drug use (IDU) is a significant problem the world over. Low levels of funding, political inaction, poor levels of health service coverage, high prevalence and incidence of IDU-related blood-borne viruses (BBVs) and ongoing stigmatization/marginalization affect people who inject drugs (PWID) regardless of the income status of the country they reside in. These barriers and system failings are, however, exacerbated in low and middle-income countries (LMICs), meaning that the potential consequences of inaction are more pressing. In this narrative review, we describe the levels of IDU and IDU-specific BBV prevalence in LMICs levels of harm reduction implementation the consequences of late or insufficient response, the shortcomings of data collection and dissemination and the barriers to effective LMIC harm reduction implementation. We also exemplify cases where IDU-related harms and BBV epidemics have been successfully curtailed in LMICs, showing that effective response, despite the barriers, is possible. In conclusion, we suggest four key priorities on the basis of the review: confirming the presence or absence of IDU in LMICs, improving the collection and dissemination of national IDU-specific data, increasing the level of harm reduction programme implementation in LMICs, and increasing both national and international advocacy for PWID and attendant public health interventions.
Publisher: Springer Science and Business Media LLC
Date: 12-09-2016
DOI: 10.1038/SREP32406
Abstract: Recent advances in the cost-efficiency of sequencing technologies enabled the combined DNA- and RNA-sequencing of human in iduals at the population-scale, making genome-wide investigations of the inter-in idual genetic impact on gene expression viable. Employing mRNA-sequencing data from the Geuvadis Project and genome sequencing data from the 1000 Genomes Project we show that the computational analysis of DNA sequences around splice sites and poly-A signals is able to explain several observations in the phenotype data. In contrast to widespread assessments of statistically significant associations between DNA polymorphisms and quantitative traits, we developed a computational tool to pinpoint the molecular mechanisms by which genetic markers drive variation in RNA-processing, cataloguing and classifying alleles that change the affinity of core RNA elements to their recognizing factors. The in silico models we employ further suggest RNA editing can moonlight as a splicing-modulator, albeit less frequently than genomic sequence ersity. Beyond existing annotations, we demonstrate that the ultra-high resolution of RNA-Seq combined from 462 in iduals also provides evidence for thousands of bona fide novel elements of RNA processing—alternative splice sites, introns and cleavage sites—which are often rare and lowly expressed but in other characteristics similar to their annotated counterparts.
Publisher: JMIR Publications Inc.
Date: 11-2017
Publisher: Wiley
Date: 03-05-2021
DOI: 10.1111/JVH.13516
Abstract: The impact of hepatitis C cure with direct‐acting antivirals (DAAs) on patient‐reported outcomes (PROs) in community settings remains unclear. We aimed to assess changes in PROs over time and whether treatment was associated with sustained improved PROs in a cohort of people who inject drugs. This study is a sub‐analysis of the Treatment and Prevention Study, a nurse‐led trial where people who inject drugs and their injecting partners were recruited in a community setting, in Melbourne, Australia. Three participant groups were characterized: treatment, untreated and non‐viremic (hepatitis C RNA negative at screening). PROs included assessment of health‐related quality of life using the Short Form‐8 (SF‐8) Survey and life satisfaction using Personal Wellbeing Index (PWI). PROs were measured at baseline and every 12 weeks until week 84. Generalized estimating equations were used to measure whether treatment was associated with longitudinal PRO change. A total of 215 participants were included in this analysis. PWI scores were significantly higher at week 12 for both treatment group ( p = 0.0309) and non‐viremic group ( p = 0.0437) compared to baseline. However, treatment was not associated with longitudinal change in PRO scores. In conclusion, we found DAA treatment did not significantly improve PRO scores compared to those not receiving treatment and without hepatitis C. The measures used in this study may not be sensitive enough to capture the hepatitis C specific improvements in quality of life that treatment affords or factors other than treatment may be influencing quality of life scores in this cohort.
Publisher: Wiley
Date: 06-11-2022
DOI: 10.5694/MJA2.51749
Publisher: Wiley
Date: 04-2019
DOI: 10.1111/JVH.13087
Abstract: A barrier to hepatitis C treatment for people who inject drugs (PWID) is needing to attend multiple appointments for diagnosis. Point-of-care hepatitis C tests provide results within 20 to 105 minutes and can be offered opportunistically in nonclinical settings such as needle syringe programmes. In this nested qualitative study, we explored the acceptability of point-of-care testing for PWID. PWID attending participating needle syringe programmes were screened using the OraQuick HCV antibody mouth swab (result in 20 minutes) those with a reactive result then underwent venepuncture for a point-of-care RNA test: the Xpert HCV Viral Load (result in 105 minutes). Convenience s ling was used to select participants for a semi-structured interview. A hybrid thematic analysis was performed, guided by Sekhon's "Theoretical Framework of Acceptability." Nineteen participants were interviewed. Three core themes emerged: "people and place," "method of specimen collection," and "rapidity of result return." It was highly acceptable to be offered testing at the needle syringeprogrammes by nurses and community health workers, who were described as competent and nonjudgemental. Most participants reported that even if a finger-stick point-of-care RNA test were an option in the future, they would prefer venepuncture, as the s le could be used for pre-treatment workup and bundled testing. Waiting 20 minutes to receive the antibody test result was acceptable, whereas the 105 minutes required for the RNA result was unacceptable. Offering point-of-care hepatitis C testing at needle syringe programmes is acceptable to PWID, however tests that avoid venepuncture are not necessarily the most attractive to PWID.
Publisher: Wiley
Date: 03-03-2021
DOI: 10.1111/JVH.13487
Abstract: Hepatitis C virus (HCV) is more prevalent among people with experience of severe mental illness compared to the general population, due in part to higher levels of injecting drug use. Delivering HCV care through mental health services may reduce barriers to care and improve outcomes. A nurse-led HCV program was established in a co-located mental health and addiction service in Melbourne, Australia. People with a history of injecting drug use, including current use, were referred for HCV testing by nurses, with support provided on-site from a general practitioner and remotely from infectious disease and hepatology specialists. A nurse practitioner, general practitioner or specialists were able to prescribe HCV treatment. One-hundred and thirty people were referred to the nurse-led service, among whom 112 (86%) were engaged in care. Of those 112, 84 (75%) were found to have detectable HCV RNA, 70 (83%) commenced treatment 28 (40%) prescriptions were nurse initiated, 19 (27%) were general practitioner initiated and 20 (29%) were prescribed from hospital clinics or elsewhere. All people with an SVR result (48/70) achieved HCV cure (intention to treat SVR 69%, per-protocol SVR 100%). Treatment commencement was highest among people prescribed opioid agonist therapy (28/29, 96%) compared to those who were not (18/26, 69%). In conclusion, a nurse-led, HCV service for people with severe mental illness including pathways to specialist support when needed can achieve high treatment uptake and cure. Further implementation work is required to improve treatment uptake, particularly among people not prescribed opioid agonist therapy, and to improve follow-up for SVR testing.
Publisher: Wiley
Date: 03-01-2023
DOI: 10.5694/MJA2.51825
Publisher: Informa UK Limited
Date: 25-06-2022
DOI: 10.1080/15332640.2022.2091703
Abstract: Migrant and ethnic minority groups are underrepresented in alcohol and other drug (AOD) research. This qualitative study explored AOD use among young people from migrant and ethnic minority backgrounds in Melbourne, Australia. We conducted one focus group and 16 interviews and thematically analyzed data drawing on the social-ecological model of health. Theme one showed AOD use was considered a "normal" part of youth identity, particularly for participants who had grown up with peer groups in Australia. Theme two highlighted participant's sense of responsibility to meet expectations and make informed decisions about AOD use to protect themselves and their friends. Theme three highlighted participant's risk of experiencing AOD-related stigma through negative stereotypes and fear of consequences within families and communities, particularly among female participants. Participants' perceptions and experiences differed by in idual factors, interpersonal relationships, AOD accessibility across settings and broader gender, cultural and religious norms. Interventions developed with young people from migrant and ethnic minority backgrounds are needed to target the social-ecological factors underpinning AOD use, particularly stigma.
Publisher: JMIR Publications Inc.
Date: 20-07-2017
DOI: 10.2196/MHEALTH.9324
No related grants have been discovered for Margaret Hellard.