title: Association of Vitamin A Status with Overnutrition in Children and Adolescents.
abstract: This study was conducted to examine the possible association between vitamin A status and overnutrition in Chinese urban children and adolescents. Weight, height and serum retinol were assessed in total 3457 children (7-9.9 years of age) and adolescents (10-17 years of age), using urban region data from the China National Nutrition and Health Survey 2010-2013 (CHNNS2010-2013) which is a nationally representative cross-sectional study. Prevalence of low serum concentration of retinol was 26.8% and 12.24% for overweight. Retinol inadequacy was significantly higher in children (32.13%) than in adolescents (24.48%). The average of retinol was significantly higher in overnutrified 42.32 μg/dL versus non-overnutrified 41.05 μg/dL (p = 0.00) children and adolescents. Overnutrified children and adolescents presented a greater chance of an increase in serum concentration of retinol (odds ratio 1.34, 95% confidence interval 1.10-1.63, and 1.48, 95% confidence interval (1.26-1.74) when compared with non-overnutrified children. An important correspondence between vitamin A deficiency and overnutrition was found. Non-overnutrified children and adolescents may have a greater chance of presenting low concentrations of retinol. Future public health strategies focused on the overnutrified population and vitamin A supplements should consider the effect of retinol on urban children and adolescents in China.
authors.affiliation: Key Laboratory of Trace Element Nutrition, National Health and Family Planning Commission of China, Department of Trace Element Nutrition, National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China. inyingyangchun@163.com.
authors.forename: Chun
authors.initials: C
authors.lastname: Yang
authors.affiliation: Key Laboratory of Trace Element Nutrition, National Health and Family Planning Commission of China, Department of Trace Element Nutrition, National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China. chenjing1909@sina.com.
authors.forename: Jing
authors.initials: J
authors.lastname: Chen
authors.affiliation: Key Laboratory of Trace Element Nutrition, National Health and Family Planning Commission of China, Department of Trace Element Nutrition, National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China. janet604@126.com.
authors.forename: Zhen
authors.initials: Z
authors.lastname: Liu
authors.affiliation: Key Laboratory of Trace Element Nutrition, National Health and Family Planning Commission of China, Department of Trace Element Nutrition, National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China. sallyycf@163.com.
authors.forename: Chunfeng
authors.initials: C
authors.lastname: Yun
authors.affiliation: Key Laboratory of Trace Element Nutrition, National Health and Family Planning Commission of China, Department of Trace Element Nutrition, National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China. yjsome@163.com.
authors.forename: Yajie
authors.initials: Y
authors.lastname: Li
authors.affiliation: Key Laboratory of Trace Element Nutrition, National Health and Family Planning Commission of China, Department of Trace Element Nutrition, National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China. piaojh@163.com.
authors.forename: Jianhua
authors.initials: J
authors.lastname: Piao
authors.affiliation: Key Laboratory of Trace Element Nutrition, National Health and Family Planning Commission of China, Department of Trace Element Nutrition, National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China. xgyangcdc@vip.sina.com.
authors.forename: Xiaoguang
authors.initials: X
authors.lastname: Yang
mesh_terms: D000293:Adolescent; D015415:Biomarkers / Q000097:blood; D002648:Child; D002681:China / Q000453:epidemiology; D003430:Cross-Sectional Studies; D005260:Female; D006306:Health Surveys; D006801:Humans; D008297:Male; D044343:Overnutrition / Q000150:complications* / Q000453:epidemiology; D015995:Prevalence; D014504:Urban Health / Q000706:statistics & numerical data*; D014801:Vitamin A / Q000097:blood; D014802:Vitamin A Deficiency / Q000097:blood / Q000150:complications* / Q000175:diagnosis / Q000453:epidemiology
chemical_list: D015415:Biomarkers; D014801:Vitamin A
keywords: adolescents; body mass index; children; vitamin A