Citation
Wang, Vivian H. C.; Min, Jungwon; Xue, Hong; Du, Shufa; Xu, Fei; Wang, Huijun; & Wang, Youfa (2018). What Factors May Contribute to Sex Differences in Childhood Obesity Prevalence in China?. Public Health Nutrition, 21(11), 2056-2064. PMCID: PMC6062478Abstract
OBJECTIVE: Previous studies in China showed large sex differences in childhood overweight and obesity (OW/OB) rates. However, limited research has examined the cause of these sex differences. The present study aimed to examine individual and parental/familial factors associated with sex differences in childhood OW/OB rates in China. DESIGN: Variables associated with child weight status, beliefs and behaviours, and obesity-related parenting practices were selected to examine their sex differences and association with a sex difference in child OW/OB outcomes using logistic regression analysis.SETTING: Cross-sectional data analysis using the 2011 China Health and Nutrition Survey.
SUBJECTS: Children aged 6-17 years (n 1544) and their parents.
RESULTS: Overall child OW/OB prevalence was 16.8 %. Adolescent boys (AB; 12-17 years) were about twice as likely to be overweight/obese as adolescent girls (AG; 15.5 v. 8.4 %, P<0.05). AB more likely had energy intake exceeding recommendations, self-perceived underweight, underestimated their body weight and were satisfied with their physical activity level than AG. AG more likely practised weight-loss management through diet and self-perceived overweight than AB. Mothers more likely identified AG's weight accurately but underestimated AB's weight. Stronger associations with risk of childhood OW/OB were found in boys than girls in dieting to lose weight (OR=6.7 in boys v. 2.6 in girls) and combined maternal and child perception of the child's overweight (OR=35.4 in boys v. 14.2 in girls).
CONCLUSIONS: Large sex differences in childhood obesity may be related to the sex disparities in weight-related beliefs and behaviours among children and their parents in China.
URL
http://dx.doi.org/10.1017/s1368980018000290Reference Type
Journal ArticleYear Published
2018Journal Title
Public Health NutritionAuthor(s)
Wang, Vivian H. C.Min, Jungwon
Xue, Hong
Du, Shufa
Xu, Fei
Wang, Huijun
Wang, Youfa