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|Title:||Association of vitamin D with adiposity measures and other determinants in a cross-sectional study of Cypriot adolescents||Authors:||Kolokotroni, Ourania
Yiallouros, Panayiotis K.
|Keywords:||Vitamin D;Adolescents;Predictors;Adiposity;BMI;Body fat percentage||Category:||Health Sciences||Field:||Medical and Health Sciences||Issue Date:||17-Jan-2014||Publisher:||Cambridge||Source:||Public Health Nutrition, 2014, January, Pages 1-10||Abstract:||Objective: To assess vitamin D status among Cypriot adolescents and investigate potential determinants including BMI and body fat percentage (BF%). Design: Participants had cross-sectional assessments of serum vitamin D, physical activity, dietary vitamin D intake and sun exposure. Linear and logistic regression models were used to explore the associations of vitamin D with potential predictors. Setting: Hospitals, Cyprus, November 2007-May 2008. Subjects: Adolescents (n 671) aged 16-18 years. Results: Mean serum vitamin D was 22•90 (sd 6•41) ng/ml. Only one in ten children had sufficient levels of vitamin D (≥30 ng/ml), while the prevalence of vitamin D deficiency (12-20 ng/ml) and severe deficiency (<12 ng/ml) was 31•7 % and 4•0 %, respectively. Lower vitamin D was associated with winter and spring season, female gender, reduced sun exposure in winter and darker skin. Participants with highest BMI and BF% when compared with a middle reference group had increased adjusted odds of vitamin D insufficiency (OR = 3•00; 95 % CI 1•21, 7•45 and OR = 5•02; 95 % CI 1•80, 13•97, respectively). A similar pattern, although not as strong, was shown for vitamin D deficiency with BF% (OR = 1•81; 95 % CI 1•04, 3•16) and BMI (OR = 1•51; 95 % CI 0•85, 2•67). Participants in the lowest BMI and BF% groups also displayed compromised vitamin D status, suggesting a U-shaped association. Conclusions: Vitamin D deficiency in adolescence is very prevalent in sunny Cyprus, particularly among females, those with darker skin and those with reduced sun exposure in winter. Furthermore, vitamin D status appears to have a U-shaped association with adiposity measures.||URI:||http://ktisis.cut.ac.cy/handle/10488/3458||ISSN:||1368-9800||DOI:||10.1017/S1368980013003480||Rights:||© The Authors||Type:||Article|
|Appears in Collections:||Άρθρα/Articles|
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