Prevalence and factors associated with overweight and obesity among first-year junior high school students in Beijing
10.3760/cma.j.cn114798-20240320-00160
- VernacularTitle:北京市初中一年级学生超重、肥胖现状及其关联因素分析
- Author:
Yu DU
1
;
Rui HOU
;
Jiayan LI
;
Lijuan WU
Author Information
1. 首都医科大学公共卫生学院，北京100069
- Keywords:
Overweight;
Obesity;
First-year junior high school students
- From:
Chinese Journal of General Practitioners
2024;23(8):868-874
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the prevalence of overweight and obesity among first-year junior high school students in Beijing and to analyze their influencing factors.Methods:A questionnaire survey and physical examinations were conducted among first-year junior high school students from 9 schools across 6 districts in Beijing selected by multi-stage random cluster sampling method from September 2017 to December 2018. The questionnaire included demographic and family information, maternal pregnancy and childbirth conditions, dietary behavior, and physical activity. Height and weight were measured by trained investigators. The overweight and obesity were classified according to the Chinese School-age Children and Adolescents Overweight and Obesity Screening BMI Classification Standards (WGOC standards). The influencing factors were analyzed with univariate and multivariate logistic regressions. Results:A total of 1 467 questionnaires were returned and 1 411 were valid with an effective rate of 96.2%. Among the 1 411 respondents, there were 784 boys (55.6%) and 627 girls (44.4%), with an average age of (12.36±0.52) years. The overweight rates for boys and girls were 23.6% (185/784) and 13.7% (86/627), respectively, while the obesity rates were 24.0% (188/784) and 14.4% (90/627), respectively. Univariate and multivariate logistic regression revealed that female gender, 13-year-old age group, and preterm birth were negatively correlated with overweight and obesity ( OR=0.428, 0.722, 0.531; P<0.05). Maternal gestational hypertension, daily egg consumption, and weekly screen time≥7 hours were positively correlated with overweight and obesity ( OR=1.879, 1.574 and 2.088, 1.251; P<0.05). Conclusions:The prevalence of overweight and obesity among first-year junior high school students in Beijing is relatively high, which are positively or negatively associated with gender, age, preterm birth, maternal gestational hypertension, daily egg consumption and weekly screen time.
