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    Serum 25-hydroxyvitamin D concentrations and cardiometabolic risk factors in adolescents and young adults

    239864_239864.pdf (636.5Kb)
    Access Status
    Open access
    Authors
    Black, Lucinda
    Burrows, S.
    Lucas, R.
    Marshall, C.
    Huang, R.
    Ping-Delfos, C.
    Beilin, L.
    Holt, P.
    Hart, P.
    Oddy, W.
    Mori, T.
    Date
    2016
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Black, L. and Burrows, S. and Lucas, R. and Marshall, C. and Huang, R. and Ping-Delfos, C. and Beilin, L. et al. 2016. Serum 25-hydroxyvitamin D concentrations and cardio-metabolic risk factors in adolescents and young adults. British Journal of Nutrition. 115 (11): 1994-2002.
    Source Title
    British Journal of Nutrition
    DOI
    10.1017/S0007114516001185
    ISSN
    1475-2662
    School
    School of Public Health
    Remarks

    This version of the article has been accepted for publication and will appear in a revised form subsequent to peer review and / or editorial input

    URI
    http://hdl.handle.net/20.500.11937/15642
    Collection
    • Curtin Research Publications
    Abstract

    Evidence associating serum 25-hydroxyvitamin D (25(OH)D) concentrations and cardiometabolic risk factors is inconsistent and studies have largely been conducted in adult populations. We examined the prospective associations between serum 25(OH)D concentrations and cardiometabolic risk factors from adolescence to young adulthood in the West Australian Pregnancy Cohort (Raine) Study. Serum 25(OH)D concentrations, BMI, homoeostasis model assessment for insulin resistance (HOMA-IR), TAG, HDL-cholesterol and systolic blood pressure (SBP) were measured at the 17-year (n 1015) and 20-year (n 1117) follow-ups. Hierarchical linear mixed models with maximum likelihood estimation were used to investigate associations between serum 25(OH)D concentrations and cardiometabolic risk factors, accounting for potential confounders. In males and females, respectively, mean serum 25(OH)D concentrations were 73·6 (sd 28·2) and 75·4 (sd 25·9) nmol/l at 17 years and 70·0 (sd 24·2) and 74·3 (sd 26·2) nmol/l at 20 years. Deseasonalised serum 25(OH)D3 concentrations were inversely associated with BMI (coefficient -0·01; 95 % CI -0·03, -0·003; P=0·014). No change over time was detected in the association for males; for females, the inverse association was stronger at 20 years compared with 17 years. Serum 25(OH)D concentrations were inversely associated with log-HOMA-IR (coefficient -0·002; 95 % CI -0·003, -0·001; P<0·001) and positively associated with log-TAG in females (coefficient 0·002; 95 % CI 0·0008, 0·004; P=0·003). These associations did not vary over time. There were no significant associations between serum 25(OH)D concentrations and HDL-cholesterol or SBP. Clinical trials in those with insufficient vitamin D status may be warranted to determine any beneficial effect of vitamin D supplementation on insulin resistance, while monitoring for any deleterious effect on TAG.

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