Obesity and its association with sociodemographic factors, health behaviours and health status among Aboriginal and non-Aboriginal adults in New South Wales, Australia.
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Date
2020-10-07
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Affiliation(s)
(Thurber, Joshy, Korda, Banks) National Centre for Epidemiology and Population Health, Research School of Population Health, Australian National University, Canberra, Australia
(Eades) Baker IDI Heart and Diabetes Institute, Melbourne, VIC, Australia
(Wade) Djurupin Health in Our Hands, Sydney, NSW, Australia
(Bambrick) School of Public Health and Social Work, Queensland University of Technology, Brisbane, QLD, Australia
(Liu) School of Public Health and Community Medicine, University of New South Wales, Sydney, NSW, Australia
(Banks) Sax Institute, Sydney, NSW, Australia
(Eades) Baker IDI Heart and Diabetes Institute, Melbourne, VIC, Australia
(Wade) Djurupin Health in Our Hands, Sydney, NSW, Australia
(Bambrick) School of Public Health and Social Work, Queensland University of Technology, Brisbane, QLD, Australia
(Liu) School of Public Health and Community Medicine, University of New South Wales, Sydney, NSW, Australia
(Banks) Sax Institute, Sydney, NSW, Australia
Year
2018
Citation
Journal of Epidemiology and Community Health. Vol.72(6), 2018, pp. 491-498.
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Journal of Epidemiology and Community Health
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Abstract
Background: High body mass index (BMI) is the second leading contributor to Australia's burden of disease and is particularly prevalent among Aboriginal peoples. This paper aims to provide insight into factors relating to obesity among Aboriginal adults and Aboriginal-non-Aboriginal differences. Methods: Cross-sectional analysis of data from the 45 and Up Study, comparing obesity (BMI >=30kg/m2) prevalence and risk factors among 1515 Aboriginal and 213301 non-Aboriginal adults in New South Wales. Age-sex-adjusted prevalence ratios (PRs) for obesity by sociodemographic factors, health behaviours and health status were estimated (multivariable log-binomial regression) for Aboriginal and non-Aboriginal participants separately. We quantified the extent to which key factors (physical activity, screen time, education, remoteness, area-level disadvantage) accounted for any excess Aboriginal obesity prevalence. Results: Obesity prevalence was 39% among Aboriginal and 22% among non-Aboriginal participants (PR=1.65, 95% CI 1.55 to 1.76). Risk factors for obesity were generally similar for Aboriginal and non-Aboriginal participants and included individual-level and area-level disadvantage, physical inactivity, and poor physical and mental health, with steeper gradients observed among non-Aboriginal participants for some factors (Pinteraction <0.05). Many risk factors were more common among Aboriginal versus non-Aboriginal participants; key factors accounted for >40% of the excess Aboriginal obesity prevalence. Conclusions: A substantial proportion of the excess obesity prevalence among Aboriginal versus non-Aboriginal participants was explained by physical activity, screen time, education, remoteness and area-level disadvantage. Socioeconomic and health behaviour factors are potential targets for promoting healthy BMI, but these must be considered within the context of upstream social and cultural factors. Adults with health needs and disability require particular attention.Copyright © Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2018. All rights reserved. No commercial use is permitted unless otherwise expressly granted.
PubMed ID
29514925 [https://www.ncbi.nlm.nih.gov/pubmed/?term=29514925]
Type
Article
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Subjects
Social determinants of health
Obesity
Obesity