ORCID Profile
0000-0002-2747-5220
Current Organisations
University of Adelaide
,
University of Florida / Institute of Food and Agricultural Sciences
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Publisher: Wiley
Date: 27-05-2022
DOI: 10.1111/IPD.13009
Abstract: Children with autism spectrum disorder (ASD) have challenges in home oral care, accessing a dentist and accepting dental treatment. Occupational therapists (OTs) and speech therapists (STs) are likely to be involved earlier in managing communication, behavioural and sensory processing issues. To determine perceived issues, barriers and potential solutions to dental care for children with ASD in Singapore from the perspective of OTs and STs. Semi‐structured interviews and a focus group discussion involving OTs and STs who treat children with ASD were conducted. Audio recordings were transcribed and coded into themes using the NVivo 12 software. Emergent themes indicated that: (i) OTs and STs have important roles in recognition of issues with toothbrushing, oral pathology and harmful oral habits (ii) OTs and STs were able to identify reasons for difficulties in oral home care for children with ASD and offer helpful strategies and (iii) OTs and STs can play a role in pre‐dental visit preparations but lack a clear dental referral pathway. OTs and STs exclusively assist in the early identification and referrals of children with ASD to the dentist. Interprofessional collaboration with dentists should be further explored to aid in the provision of preventive dental advice.
Publisher: SAGE Publications
Date: 29-10-2019
Abstract: Various arrangements for funding health care facilities can have different levels of performance of care provision on different groups of people. Such differential performance of oral care is not previously known concerning Indigenous communities. This study aimed to assess the effect of visiting a public or private dental care facility on the performance of oral care experienced by Indigenous versus non-Indigenous children in Australia. Data from the National Child Oral Health Survey were used with a representative s le of children from all the states and territories of Australia. The performance of oral care was measured with the Child Oral Care Performance Assessment Scale (COPAS), which contains 37 items from 9 domains (Effective, Appropriate, Efficient, Responsive, Accessible, Safe, Continuous, Capable, and Sustainable) with a score ranging from 0 to 148. Mixed effects models that accounted for stratum and s ling weights were used for the stratified analyses (Indigenous vs. non-Indigenous) that assessed the effect of public versus private care on the COPAS. Relative excess risk due to interaction was calculated to assess effect modification. Among the Indigenous children, private care was similar to public care (regression coefficient [RC] = −1.27, 95% CI = −9.5 to 6.97), whereas private care was higher than public care among non-Indigenous children (RC = 4.60, 95% CI = 3.67 to 6.18). This trend was similar among the 9 domains of the COPAS as well, except for Effectiveness, which was similar for private and public facilities among non-Indigenous children (RC = −0.03, 95% CI = −0.29 to 0.23). Based on the continuous COPAS score, effect modification was 4.46 (95% CI = 0.11 to 8.82) on the additive scale and 1.06 (1.01, 1.13) on the multiplicative scale. The relative excess risk due to interaction reported an excess chance of 1.17 (95% CI = 0.01 to 0.33), which was consistent with the stratified analyses and effect modification measured with the continuous score. Thus, this study found a higher performance of oral care in private care locations among non-Indigenous children versus Indigenous children. The findings caution policy makers and other stakeholders that moving oral care from public to private care facilities can increase the inequity faced by Indigenous children in Australia.
Publisher: MDPI AG
Date: 28-11-2022
DOI: 10.3390/W14233887
Abstract: Land suitability assessment for irrigation is critical to inform as well as manage current and future irrigated agriculture production systems. Land suitability analysis determines whether a given land area could potentially be used for specific crop production. The objective of this study was to identify the availability of suitable land for surface irrigation systems for the production of millet, sorghum, sugarcane, and wheat production in the Lower Omo Gibe plain, Southern Ethiopia. Land suitability analysis was performed by a parametric method using factors such as soil texture, effective soil depth, Calcium Carbonate (CaCO3), soil electrical conductivity (ECe), drainage class, and slope. Five land suitability classes were identified that include highly suitable (S1), moderately suitable (S2), marginally suitable (S3), currently not suitable (N1), and permanently not suitable (N2). Results showed that 6.6, 7.5, 6.6, and 6.6% of the study area mostly located in the western part of the basin, were highly suitable (S1) for irrigated millets, sorghum, sugarcane, and wheat crops production, respectively. However, the mountainous areas in the central part of the basin were classified as N2 due to the steep slope and shallow soil depth. Overall, the results of the study revealed that the use of various suitability analysis techniques could assist in identifying suitable land for irrigated agriculture.
Publisher: Springer Science and Business Media LLC
Date: 06-09-2021
DOI: 10.1186/S12903-021-01773-Z
Abstract: There are very few studies of the association between temporomandibular dysfunction (TMD) and oral health-related quality of life (OHRQoL) in a representative s le from the Asia–Pacific region. Accordingly, we aimed to quantify the association of TMD with OHRQoL dimensions and overall measurement scores in a representative s le of Australian adults while accounting for a range of confounders, and statistically estimating whether TMD experience is meaningfully associated with OHRQoL. Australia’s National Survey of Adult Oral Health 2004–2006 data were used. The outcome variables were the Oral Health Impact Profile (OHIP-14) domains and overall scores while the main exposure was self-reported Diagnostic Criteria Question for TMD. The analysis accounted for confounders including oral health status obtained from the oral examination, demographics, socioeconomics, health behaviours and health including perceived stress subscales of the PSS-14. We conducted complex s les analysis while using Cohen’s f 2 effect size to estimate whether the association is meaningful. TMD prevalence was 9.9% (95% CI: 8.4–11.6%) among 4133 Australian adults. TMD experience was associated with impairments to the seven OHIP-14 OHRQoL domains ( P .05) with higher impairments observed in physical pain ( B = 0.82, 95% CI: .45–1.20, P .001), psychological discomfort ( B = 0.68, 95% CI: .29–1.06, P = .001) and psychological disability ( B = 0.52, 95% CI: .20–.84, P = .001) in adjusted multivariate analyses. The difference in the mean OHIP-14 scores for those reporting TMD (Mean = 13.1, 95% CI: 12.0–14.0) and those who did not (Mean = 6.6, 95% CI: 6.0–6.8) was significant ( t = 7.51, P .001). In an adjusted multivariable model for OHIP-14 scores, TMD experience was associated with higher OHIP-14 scores ( B = 3.34, 95% CI: 1.94–4.75, P .001) where the Cohen’s f 2 was .022. Further, perceived stress subscales: perceived distress and perceived control were associated with TMD experience and OHIP-14 scores ( P .05). Lower OHRQoL was observed in Australian adults who reported TMD experience but with small clinical importance which might support considering TMD in regular dental care. The higher impairments observed in physical pain, psychological discomfort and psychological disability domains of OHRQL can help clinicians and researchers focus their attention on these domains. The confounding effect exhibited by the perceived stress subscale might support their inclusion in future TMD and OHRQoL research.
Publisher: JMIR Publications Inc.
Date: 06-10-2015
DOI: 10.2196/IJMR.4712
Publisher: Wiley
Date: 22-11-2022
DOI: 10.1111/IPD.13035
Abstract: Children with autism spectrum disorders (ASD) face challenges in home oral care, accessing a dentist and accepting dental treatment. To determine the barriers to dental care for autistic children in Singapore through the experiences and opinions of their parents. A qualitative exploratory approach comprising semistructured interviews and a focus group discussion was used. Audio recordings were transcribed and coded into themes using NVivo 12 software. Participants were 23 parents of autistic children aged 3–12 years. The following barriers were identified: (1) Sensory, physical and parental knowledge issues are related to toothbrushing difficulties and use of nonoptimally fluoridated toothpaste in autistic children. (2) Accessing dental services was hindered by a lack of parental knowledge on the importance of an early dental home, parental apprehension about the child's acceptance of dental care, lack of information on specialised dentists and perceived high cost of dental visits. Parental suggestions for improvements included understanding the child's sensory profile, more information on finding a suitable dentist and subsidisation of costs for multiple acclimatisation visits. Caregivers' education, information about specialised dentists and the availability of specific dental care resources for autistic children in Singapore are needed for optimising their dental care.
Publisher: Wiley
Date: 09-10-2020
DOI: 10.1111/ORS.12559
Publisher: Wiley
Date: 12-11-2019
DOI: 10.1111/CDOE.12504
Abstract: The global demographic changes resulting in an ageing population require attention on xerostomia, as its prevalence appears to increase with age. The Xerostomia Inventory (XI) is a 11-item instrument developed to evaluate the symptoms and behavioural components of xerostomia, while a shortened 5-item version named Summated Xerostomia Inventory (SXI) was later proposed. The aim of the present study was to evaluate the construct validity of the XI and whether the SXI can provide a shortened version. Since previous studies focused only on dimensionality and reliability, we employed modern psychometric methodology to investigate properties such as differential item functioning (DIF) and targeting. The XI was applied to 164 middle-aged to older adults who participated in a randomized controlled trial to investigate the effects of alcohol-containing mouth rinse in Singapore. The psychometric properties of the XI were investigated with the Rasch model (Partial Credit Model). Overall model fit was evaluated with a summary chi-square statistic. Item fit was evaluated with the Fit Residual, and values between -2.5 and 2.5 are considered acceptable. DIF by sex was evaluated through a two-way ANOVA of the residuals. After collapsing the categories of "Hardly ever" and "Fairly often", the test of global fit (χ The current study expanded the evidence on the XI and SXI validity and provides new implications for practice: a 3-point categorization ("Never," "Occasionally" and "Very often") should be preferred rather than the original 5-point categorization the XI and SXI scores can be compared between men and women and will reflect true differences in xerostomia rather than measurement bias.
Publisher: Wiley
Date: 31-05-2017
DOI: 10.1111/ADJ.12509
Abstract: While Australians are searching the internet for third molar (TM) information, the usefulness of online sources may be questioned due to quality variation. This study explored: (i) internet use, online information-seeking behaviour among TM patients attending public dental services and (ii) whether patients' TM knowledge scores are associated with the level of internet use and eHealth Literacy Scale (eHEALS) scores. Baseline survey data from the 'Engaging Patients in Decision-Making' study were used. Variables included: sociodemographics, internet access status, online information-seeking behaviour, eHEALS, the Control Preferences Scale (CPS) and TM knowledge. Participants (N = 165) were mainly female (73.8%), aged 19-25 years (42.4%) and had 'secondary school or less' education (58.4%). A majority (N = 79, 52.7%) had sought online dental information which was associated with active decisional control preference (odds ratio = 3.1, P = 0.034) and higher educational attainment (odds ratio = 2.7, P = 0.040). TM knowledge scores were not associated with either the level of internet use (F 'The internet-prepared patient' phenomena exists among public TM patients and was explained by preference for involvement in decision-making. However, internet use was not associated with better TM knowledge. Providing TM patients with internet guidance may be an opportunity to improve TM knowledge.
Publisher: Elsevier BV
Date: 10-2017
DOI: 10.1111/IDJ.12298
Abstract: This study had two objectives: (i) to explore and model domains describing the real-time impact of third molars (TMs) on quality of life (QoL) and (ii) to assess the percentage coverage, in some generic health-related quality of life (HRQoL) and oral health-related quality of life (OHRQoL) instruments, of the TM QoL domains identified in this study. A global cross-sectional s le of tweets containing 'wisdom tooth' over a 1-week period retrieved 3,537 tweets. After random quota s ling, classification and filtering, only 843 tweets were included in the thematic analysis. A TM QoL model was constructed based on the associations of the identified domains. Domains for the selected generic HRQoL and OHRQoL instruments were plotted against the domains identified in the study to calculate the percentage coverage for each. The QoL domains identified were pain (n = 348, 41%), mood (n = 173, 20%), anxiety and fear (n = 54, 7%), enjoying food (n = 41, 4%), coping (n = 37, 4%), daily activities (n = 34, 4%), sleep (n = 24, 2%), social life (n = 19, 2%), physical health (n = 17, 2%), ability to think (n = 9, 1%), self-care (n = 8, 1%) and sporting & recreation (n = 2, <1%). The Assessment Quality of Life instrument (AQoL-8D) covers 87% of the TM QoL domains, while the rest of the HRQoL and OHRQoL instruments cover 33-60%. This study shows how Twitter can be used to obtain real-time QoL data, which might be used to model how TMs impact on QoL. The TM QoL domains identified in the study were generally under-represented among the generic OHRQoL instruments assessed while, the HRQoL AQoL-8D covered most of the TM QoL domains. The QoL domains identified in the study might be used to develop a new OHRQoL measure for TMs.
Location: United Kingdom of Great Britain and Northern Ireland
Location: United States of America
No related grants have been discovered for Kamal Hanna.