Vitamin D status in healthy adults in Guiyang of China
10.3760/cma.j.issn.1000-6699.2011.08.012
- VernacularTitle:贵阳城区成人维生素D营养状况调查
- Author:
Qiao ZHANG
;
Nianchun PENG
;
Shujing XU
;
Miao ZHANG
;
Huijun ZHUANG
;
Jinglu ZHANG
;
Liu LIU
;
Lixin SHI
- Publication Type:Journal Article
- Keywords:
Serum 25-hydroxyvitamin D;
Epidemiology;
Healthy adults
- From:
Chinese Journal of Endocrinology and Metabolism
2011;27(8):659-663
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate vitamin D status in healthy adults living in Guiyang. Method 1 500 healthy volunteers aged 20-79 years ( mean 45.2 years ) were recruited from a community in Guiyang by cluster sampling method. Questionnaires for living habits and fasting blood samples were collected from November, 2009 to February, 2010. Serum 25 ( OH ) D concentrations were measured by radioimmunoassay, using the DiaSorin kit,USA. Results The average serum 25 ( OH ) D level was ( 20. 4±9.0 ) ng/ml. The percentages of vitamin D deficiency [25 ( OH ) D ＜ 20 ng/ml], insufficiency [20 ng/ml ≤ 25 ( OH ) D ＜ 30 ng/ml], and sufficiency [25 ( OH ) D ≥ 30ng/ml] were 52. 3% , 32. 3% , and 15.4% , respectively. The 25 (OH) D concentrations in the young, middle-aged,and elderly were ( 18. 2±9. 2), (22. 8±8. 7), and ( 19. 9±7.8) ng/ml, respectively. The percentages of vitamin D deficiency in these groups were 62. 8%, 40. 2%, and 55.4%, being 61.6% in higher educational group ( ≥ 13 years) and 64. 4% in the group with lower body mass index ( ＜ 18.5 kg/m2 ). Conclusion Vitamin D deficiency is common in Guiyang including all age groups, especially among the youth and the elderly. Serum 25-hydroxyvitamin D level is also influenced by education, age, smoking, and other factors.
