Prevalence and predictors of vitamin D deficiency in a nationally representative sample of Australian Aboriginal and Torres Strait Islander adults

L.J. Black; E. Dunlop; R.M. Lucas; G. Pearson; B. Farrant; C.C.J. Shepherd

doi:10.1017/S0007114520003931

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Prevalence and predictors of vitamin D deficiency in a nationally representative sample of Australian Aboriginal and Torres Strait Islander adults

Journal article

Peer reviewed

Prevalence and predictors of vitamin D deficiency in a nationally representative sample of Australian Aboriginal and Torres Strait Islander adults

L.J. Black, E. Dunlop, R.M. Lucas, G. Pearson, B. Farrant and C.C.J. Shepherd

British Journal of Nutrition, Vol.126(1), pp.101-109

2020

DOI: https://doi.org/10.1017/S0007114520003931

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Abstract

Vitamin D deficiency (serum 25-hydroxyvitamin D (25(OH)D) concentration <50 nmol/l) is recognised as a public health problem globally. The present study details the prevalence and predictors of vitamin D deficiency in a nationally representative sample (n 3250) of Australian Aboriginal and Torres Strait Islander adults aged ≥18 years. We used data from the 2012–2013 Australian Aboriginal and Torres Strait Islander Health Survey (AATSIHS). Serum 25(OH)D concentrations were measured by liquid chromatography-tandem MS. Survey-weighted logistic regression models were used to determine the independent predictors of vitamin D deficiency. Approximately 27 % of adult AATSIHS participants were vitamin D deficient. Vitamin D deficiency was more prevalent in remote areas (39 %) than in non-remote areas (23 %). Independent predictors of vitamin D deficiency included assessment during winter (men, adjusted OR (aOR) 5·7; 95 % CI 2·2, 14·6; women, aOR 2·2; 95 % CI 1·3, 3·8) and spring (men, aOR 3·3; 95 % CI 1·4, 7·5; women, aOR 2·6; 95 % CI 1·5, 4·5) compared with summer, and obesity (men, aOR 2·6; 95 % CI 1·2, 5·4; women, aOR 4·3; 95 % CI 2·8, 6·8) compared with healthy weight. Statistically significant associations were evident for current smokers (men only, aOR 2·0; 95 % CI 1·2, 3·4), remote-dwelling women (aOR 2·0; 95 % CI 1·4, 2·9) and university-educated women (aOR 2·4; 95 % CI 1·2, 4·8). Given the high prevalence of vitamin D deficiency in this population, strategies to maintain adequate vitamin D status through safe sun exposure and dietary approaches are needed.

Details

Title: Prevalence and predictors of vitamin D deficiency in a nationally representative sample of Australian Aboriginal and Torres Strait Islander adults
Authors/Creators: L.J. Black (Author/Creator) - Curtin University
E. Dunlop (Author/Creator) - Curtin University
R.M. Lucas (Author/Creator) - The University of Western Australia
G. Pearson (Author/Creator) - The Kids Research Institute Australia
B. Farrant (Author/Creator) - The Kids Research Institute Australia
C.C.J. Shepherd (Author/Creator) - Murdoch University
Publication Details: British Journal of Nutrition, Vol.126(1), pp.101-109
Publisher: Cambridge University Press
Identifiers: 991005542116807891
Copyright: © 2020 The Authors
Murdoch Affiliation: Ngangk Yira Aboriginal Health Research Centre
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration
Citation topics: 1 Clinical & Life Sciences; 1.80 Bone Diseases; 1.80.279 Vitamin D
Web Of Science research areas: Nutrition & Dietetics
ESI research areas: Agricultural Sciences