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
,
2
;
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
2. 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.
