ORCID Profile
0000-0002-9565-5004
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Publisher: Elsevier BV
Date: 10-2017
DOI: 10.1016/J.JAD.2017.06.012
Abstract: There is a paucity of nationally representative data available on the correlates of physical activity (PA) among people with depression, especially in low- and middle-income countries (LMICs). Thus, we investigated PA correlates among community-dwelling adults with depression in this setting. World Health Survey data included 24,230 adults (43.1 ± 16.1 years 36.1% male) with ICD-10 diagnoses of depression including brief depressive episode and subsyndromal depression aged ≥ 18 years from 46 LMICs. PA was assessed by the International Physical Activity Questionnaire. Participants were dichotomised into low and moderate-to-high physically active groups. Associations between PA and a range of sociodemographic, health behaviour and mental and physical health variables were examined using multivariable logistic regressions. 34.8% of participants with depression were physically inactive. In the multivariate analyses, inactivity was associated with male sex, older age, not being married/cohabiting, high socio-economic status, unemployment, living in an urban setting, less vegetable consumption, and poor sleep/ low energy. In addition, mobility difficulties and some somatic co-morbidity were associated with not complying with the 150min per week moderate-to-vigorous PA recommendations. The current data provide guidance for future population level interventions across LMICs to help people with depression engage in regular PA.
Publisher: Elsevier BV
Date: 09-2017
Publisher: Wiley
Date: 07-08-2013
Abstract: To investigate the risk of adverse pregnancy outcomes and caesarean section among adolescents in low- and middle-income countries. Secondary analysis using facility-based cross-sectional data from the World Health Organization (WHO) Global Survey on Maternal and Perinatal Health. Twenty-three countries in Africa, Latin America, and Asia. Women admitted for delivery in 363 health facilities during 2-3 months between 2004 and 2008. We constructed multilevel logistic regression models to estimate the effect of young maternal age on risks of adverse pregnancy outcomes. Risk of adverse pregnancy outcomes among young mothers. A total of 78 646 nulliparous mothers aged ≤24 years and their singleton infants were included in the analysis. Compared with mothers aged 20-24 years, adolescents aged 16-19 years had a significantly lower risk of caesarean section (adjusted OR 0.75, 95% CI 0.71-0.79). When the analysis was restricted to caesarean section indicated for presumed cephalopelvic disproportion, the risk of caesarean section was significantly higher among mothers aged ≤15 years (aOR 1.27, 95% CI 1.07-1.49) than among those aged 20-24 years. Higher risks of low birthweight and preterm birth were found among adolescents aged 16-19 years (aOR 1.10, 95% CI 1.03-1.17 aOR 1.16, 95% CI 1.09-1.23, respectively) and ≤15 years (aOR 1.33, 95% CI 1.14-1.54 aOR 1.56, 95% CI 1.35-1.80, respectively). Adolescent girls experiencing pregnancy at a very young age (i.e. <16 years) have an increased risk of adverse pregnancy outcomes.
Publisher: Elsevier BV
Date: 09-2018
Publisher: Elsevier BV
Date: 05-2017
Publisher: MDPI AG
Date: 16-09-2021
DOI: 10.3390/ORAL1030027
Publisher: Elsevier BV
Date: 10-2017
Publisher: Elsevier BV
Date: 11-2018
Publisher: Springer Science and Business Media LLC
Date: 03-08-2017
Publisher: American Society of Tropical Medicine and Hygiene
Date: 07-12-2016
Publisher: Elsevier BV
Date: 2019
Publisher: Elsevier BV
Date: 2017
Publisher: Oxford University Press (OUP)
Date: 16-06-2017
DOI: 10.1093/AJE/KWX159
Abstract: In this study, we assessed the association of chronic medical conditions and multimorbidity with perceived stress among community-dwelling adults in 44 low- and middle-income countries. Data from the World Health Survey (2002-2004), including 229,293 adults, were analyzed. A perceived stress score (range, 0 (lowest stress)-100 (highest stress)) was computed on the basis of 2 questions from the Perceived Stress Scale. Eleven chronic conditions were assessed. Multivariable linear regression analyses were conducted to explore the associations. All chronic conditions were associated with significantly higher mean perceived stress scores, with the exception of edentulism. The associations were particularly strong for depression (β = 14.71, 95% confidence interval (CI): 13.68, 15.74), visual impairment (β = 10.66, 95% CI: 8.09, 13.23), and schizophrenia (β = 9.98, 95% CI: 7.71, 12.24). Compared with no chronic conditions, the β coefficients for perceived stress with the presence of 1, 2, 3, and ≥4 chronic conditions were 5.58 (95% CI: 4.94, 6.23), 9.58 (95% CI: 8.67, 10.49), 14.15 (95% CI: 12.63, 15.67), and 20.17 (95% CI: 18.29, 22.05), respectively. The associations with perceived stress were significantly stronger among the poorest in iduals for arthritis, asthma, diabetes, edentulism, and ≥4 chronic conditions. Our data suggest that a range of chronic conditions and multimorbidity are associated with greatly increased perceived stress among people in low- and middle-income countries, and that the poorest persons may be a particularly vulnerable group.
Publisher: Elsevier BV
Date: 2017
Publisher: Springer Science and Business Media LLC
Date: 18-01-2017
Publisher: Elsevier BV
Date: 03-2018
DOI: 10.1016/J.SCHRES.2017.06.025
Abstract: People with schizophrenia engage in low levels of physical activity (PA). However, few large-scale studies have investigated the factors that may influence PA participation in in iduals with psychosis and data from low- and middle-income countries (LMICs) is especially scarce. Thus, we investigated PA correlates in a large s le of people with a psychosis diagnosis across 47 LMICs. Cross-sectional data from the World Health Survey, restricting to those with a self-reported lifetime diagnosis of schizophrenia sychotic disorder, was analyzed. PA was assessed by the International Physical Activity Questionnaire (IPAQ) and participants were dichotomized into those that do and do not (low PA) meet the minimum recommended PA weekly targets (≥150min). A range of socio-demographic, health behavior, and mental and physical health variables were examined using random effects logistic regression. Overall 2407 people (mean 42.0years, 41.5% males) with schizophrenia sychosis were included. The prevalence of low PA was 39.2% (95%CI=37.0%-41.2%). Male sex (odds ratio (OR)=1.33), increasing age, unemployment (vs. employed OR=2.50), urban setting (vs. rural OR=1.75), inadequate fruit consumption (vs. adequate fruit intake OR=3.03), depression (OR=1.33), sleep/energy disturbance, and mobility limitations were significantly associated with low PA. Marital status, education, wealth, smoking, vegetable and alcohol consumption, anxiety, cognition, pain, and chronic medical conditions were not significant correlates. PA is influenced by a range of factors among people with psychosis. These correlates should be considered in interventions aiming to facilitate PA in psychotic in iduals living in LMICs.
Publisher: Wiley
Date: 02-01-2019
DOI: 10.1002/WPS.20614
Publisher: Springer Science and Business Media LLC
Date: 03-08-2017
Publisher: Oxford University Press (OUP)
Date: 24-08-2016
Publisher: Narra T
Date: 08-2022
Abstract: Vaccines are urgently needed to control the coronavirus disease 2019 (COVID-19) pandemic. The aim of this study was to determine the acceptance of and willingness to purchase a hypothetical COVID-19 vaccine in the general population of Aceh, a holistic Shariah law implementation province in Indonesia. An online cross-sectional study was conducted using a quota s ling technique between 1 to 24 September 2021. To determine hypothetical vaccine acceptance, respondents were asked if they were willing to accept vaccines with combinations of either 50% or 95% effectiveness and either 5% or 20% risk of adverse effects. Willingness to purchase was assessed by asking whether the participants would pay for such vaccines at certain price points. Logistic regression analysis was used to assess the associated determinants. Out of 377 respondents included in the final analysis, 86.5% were willing to accept a COVID-19 vaccine with 95% effectiveness and 5% adverse effects. The acceptance rate dropped to 45.1% if the risk of adverse effects was 20%. Vaccines with 50% effectiveness and 5% adverse effects were acceptable to 42.2% but the acceptance went down to 17.2% if the risk of adverse effects increased to 20%. Multivariate analysis found that men were twice as likely to accept a vaccine with 95% effectiveness and 5% adverse effects compared to females (aOR: 2.01 95% CI 1.05–3.86). We found that 156/377 (41.3%) of respondents were willing to purchase a COVID-19 vaccine and of these participants 71.1% were willing to pay between Indonesian Rupiah (IDR) 50,000–150,000 (US$ 3.33–10.00). In conclusion, the acceptance rate of a hypothetical COVID-19 vaccine varied based on effectiveness and the risk of adverse effects.
Publisher: Elsevier BV
Date: 2017
DOI: 10.1016/J.JAD.2016.10.028
Abstract: Despite the known benefits of physical activity (PA) among people with anxiety, little is known about PA levels in people with anxiety at the population level. This study explored the global prevalence of anxiety and its association with PA. Cross-sectional, community-based data from the World Health Survey was analyzed. Prevalence of anxiety was estimated for 237,964 in iduals (47 countries). PA was categorized as low, moderate, and high based on the International Physical Activity Questionnaire (short form). The association between PA and anxiety was assessed by multivariable logistic regression. The overall global prevalence of anxiety was 11.4% (47 countries). Across 38 countries with available data on PA, 62.5%, 20.2%, and 17.3% of the s le engaged in high, moderate, and low levels of PA respectively. The prevalence of low physical activity in those with and without anxiety was 22.9% vs. 16.6% (p<0.001) (38 countries, n=184,920). In the pooled model adjusted for socio-demographics, depression, and country, in iduals engaging in low PA (vs. high PA) had 1.32 (95% CI=1.17-1.47) times higher odds for anxiety than those with high PA. Female sex, older age, lower education and wealth, and depression were also associated with low PA. At the in idual country level, there was a significant positive association between low PA and anxiety in 17 of the 38 countries. Low PA levels are associated with increased prevalence of anxiety. There is a need for longitudinal research to establish the directionality of the relationships observed.
Publisher: Narra T
Date: 22-10-2022
Abstract: Infectious threats to humans are continuously emerging. The 2022 worldwide monkeypox outbreak is the latest of these threats with the virus rapidly spreading to 106 countries by the end of September 2022. The burden of the ongoing monkeypox outbreak is manifested by 68,000 cumulative confirmed cases and 26 deaths. Although monkeypox is usually a self-limited disease, patients can suffer from extremely painful skin lesions and complications can occur with reported mortalities. The antigenic similarity between the smallpox virus (variola virus) and monkeypox virus can be utilized to prevent monkeypox using smallpox vaccines treatment is also based on antivirals initially designed to treat smallpox. However, further studies are needed to fully decipher the immune response to monkeypox virus and the immune evasion mechanisms. In this review we provide an up-to-date discussion of the current state of knowledge regarding monkeypox virus with a special focus on innate immune response, immune evasion mechanisms and vaccination against the virus.
Publisher: Elsevier BV
Date: 10-2019
DOI: 10.1016/J.YPMED.2019.105819
Abstract: Physical inactivity is a serious public health concern in adolescents from low- and middle-income countries (LMICs). Despite this, only a few multinational studies has investigated correlates of physical activity (PA) in young adolescents in this part of the world. In this study, we identified physical activity correlates using data from the Global school-based Student Health Survey. In total, 142,118 adolescents from 48 LMICs (age 13.8 ± 1.0 years 49% girls) were included in the analyses. PA was assessed by the PACE+ Adolescent Physical Activity Measure and participants were dichotomised into those who do (60 min of moderate-vigorous PA every day of the week) and do not comply with the World Health Organization recommendations. We used multivariable logistic regression in order to assess the correlates. The prevalence of low PA was 15.3% (95%CI = 14.5%-16.1%). Boys (OR = 1.64 95%CI = 1.47-1.83) and those who participated in physical education for ≥5 days/week (OR = 1.12 95%CI = 1.10-1.15) were more likely to meet PA guidelines, while adolescents with food insecurity (OR = 0.85 95%CI = 0.80-0.90), low fruit and vegetable intake (OR = 0.68 95%CI = 0.63-0.74), low parental support/monitoring (OR = 0.68 95%CI = 0.62-0.74), no friends (OR = 0.80 95%CI = 0.72-0.88), and who experienced bullying (OR = 0.93 95%CI = 0.86-0.99) were less likely to have adequate levels of PA. There were a few variations in the correlates depending on country-income level. Our data indicate that in adolescents aged 12 to 15 years living in LMICs physical activity participation is a complex and multi-dimensional behavior determined by sociocultural, socio-economic, and policy-related factors. Longitudinal research is needed to confirm/refute the present findings.
Publisher: Elsevier BV
Date: 03-2018
Publisher: Elsevier BV
Date: 11-2018
Publisher: Springer Science and Business Media LLC
Date: 03-08-2018
Publisher: Springer Science and Business Media LLC
Date: 03-08-2018
Publisher: Public Library of Science (PLoS)
Date: 04-06-2018
Publisher: Wiley
Date: 05-10-2016
DOI: 10.1111/ACPS.12654
Abstract: Physical activity (PA) is good for health, yet several small-scale studies have suggested that depression is associated with low PA. A paucity of nationally representative studies investigating this relationship exists, particularly in low- and middle-income countries (LMICs). This study explored the global association of PA with depression and its mediating factors. Participants from 36 LMICs from the World Health Survey were included. Multivariable logistic regression analyses were undertaken exploring the relationship between PA and depression. Across 178 867 people (mean ± SD age = 36.2 ± 13.5 years 49.9% male), the prevalence of depression and the prevalence of low PA were 6.6% and 16.8% respectively. The prevalence of low PA was significantly higher among those with depression vs. no depression (26.0% vs. 15.8%, P < 0.0001). In the adjusted model, depression was associated with higher odds for low PA (OR = 1.42 95% CI = 1.24-1.63). Mediation analyses demonstrated that low PA among people with depression was explained by mobility limitations (40.3%), pain and discomfort (35.8%), disruptions in sleep and energy (25.2%), cognition (19.4%) and vision (10.9%). In iduals with depression engage in lower levels of PA in LMICs. Future longitudinal research is warranted to better understand the relationships observed.
Publisher: Elsevier BV
Date: 2019
Publisher: Elsevier BV
Date: 09-1992
Publisher: Elsevier BV
Date: 07-2017
Publisher: Elsevier BV
Date: 10-2021
Publisher: Springer Science and Business Media LLC
Date: 03-08-2017
Location: United Kingdom of Great Britain and Northern Ireland
Location: United States of America
No related grants have been discovered for Ai Koyanagi.