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Title: Vitamin d status and cardiometabolic risk factors in young adults in Hong Kong : associations and implications
Authors: Wang, EW 
Pang, MY 
Siu, PM 
Lai, CK 
Woo, J
Collins, AR
Benzie, IFF 
Issue Date: 2018
Source: Asia Pacific journal of clinical nutrition, 2018, v. 27, no. 1, p. 231-237
Abstract: Background and Objectives: Vitamin D deficiency is reportedly common, but we lack data from young adults. Such data are of interest because epidemiological data support vitamin D as a possible risk modulator for diabetes and cardiovascular ('cardiometabolic') disease. Our objectives were to assess vitamin D status (as plasma 25(OH)D concentration) and investigate associations between this and biomarkers of cardiometabolic disease risk in a group of still-healthy young adults in Hong Kong. Methods and Study Design: In this observational study, fasting venous blood was collected from 196 (63 males, 133 females), young (18-26 years) non-smoking, nonobese, consenting adults in good general health. Plasma 25(OH)D was measured by LC-MS/MS. A panel of established cardiometabolic risk factors (HbA1c, plasma glucose, lipid profile, hsCRP) and blood pressure were also measured. Results: Mean (SD) plasma 25(OH)D concentration was 42.1 (13.0), with range 15.7-86.8 nmol/L; 141/196 subjects (72%) had vitamin D deficiency (25(OH)D < 50 nmol/L); 13/184 (6.6%) were severely deficient (< 25 nmol/L). Inverse association was seen between 25(OH)D and fasting glucose (r=-0.18; p < 0.05). Higher HbA1c and TC:HDL-C ratio and lower HDL-C were seen in those with plasma 25(OH)D < 25 nmol/L (p < 0.05). Conclusions: Vitamin D deficiency was highly prevalent and associated with poorer cardiometabolic risk profile in these young adults. Public health strategies for addressing vitamin D deficiency are needed urgently. These new data provide support for further study on vitamin D deficiency as a modifiable risk factor for cardiometabolic disease and the ameliorative effects of increased vitamin D intake on cardiometabolic disease risk profile of vitamin D-deficient young adults.
Publisher: HEC Press
Journal: Asia Pacific journal of clinical nutrition 
ISSN: 0964-7058
EISSN: 1440-6047
DOI: 10.6133/apjcn.022017.08
Rights: Posted with permission of the publisher.
The following publication Wang, E. W. L., Pang, M. Y. C., Siu, P. M. F., Lai, C. K. Y., Woo, J., Collins, A. R., & Benzie, I. F. (2018). Vitamin D status and cardiometabolic risk factors in young adults in Hong Kong: associations and implications. Asia Pacific journal of clinical nutrition, 27(1), 231-237 is available at https://dx.doi.org/10.6133/apjcn.022017.08
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