The vitamin D nutritional status in Chinese urban women of child-bearing age from 2010 to 2012
10.3760/cma.j.issn.0253-9624.2017.02.003
- VernacularTitle: 2010—2012年中国城市育龄妇女维生素D营养状况
- Author:
Jiaxi LU
1
;
Xiaobing LIU
;
Jing CHEN
;
Yichun HU
;
Chunfeng YUN
;
Weidong LI
;
Rui WANG
;
Yanhua YANG
;
Deqian MAO
;
Jianhua PIAO
;
Xiaoguang YANG
;
Lichen YANG
Author Information
1. National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention; Key Laboratory of Trace Element Nutrition, National Health and Family Planning Commission, Beijing 100050, China
- Publication Type:Journal Article
- Keywords:
Vitamin D;
Women;
China;
Cross-sectional studies
- From:
Chinese Journal of Preventive Medicine
2017;51(2):112-116
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To evaluate the vitamin D nutritional status in Chinese women of child-bearing age by analyzing serum 25-hydroxyvitamin D level in 2010-2012.
Methods:Data were obtained from the China Nutrition and Health Survey in 2010-2012. Using cluster sampling and proportional stratified random sampling, 1 514 women of child-bearing age (18-44 years old) from 34 metropolis and 41 small and medium-sized cities were included in this study. Demographic information was collected by questionnaire and serum 25-hydroxyvitamin D concentration was determined by radioimmunoassay, in accordance with the 2010 Institute of Medicine of the National Academies standards. We compared differences in vitamin D levels, specifically serious deficiency, lack of deficiency, insufficiency, and excess.
Results:The overall serum 25-hydroxyvitamin D level of Chinese urban women of child-bearing age (P50 (P25-P75)) was 20.1 (15.1-26.3) ng/ml; minorities had a significantly higher serum 25-hydroxyvitamin D level of 22.0 (15.9-27.5) ng/ml compared with women of Han nationality (19.8 (14.9-26.2) ng/ml) (χ2=7.02, P=0.008). The proportions of women with serious deficiency, lack of deficiency, insufficiency, and excess vitamin D were 11.6% (n=175), 37.9% (n=574), 35.1% (n=531), and 0.3% (n=5), respectively. Only 15.1% (n=229) of women of child-bearing age had normal vitamin D nutritional status. No significant differences in vitamin D nutritional status were observed according to age, body mass index, city, nationality, educational level, marital status, or household income per capita (P>0.05).
Conclusion:Most Chinese urban women of child-bearing age have poor vitamin D levels and require vitamin D supplementation.
