Department of Pediatrics, Second Hospital of Xi'an Jiaotong University, Xi'an 710061, Shaanxi Province, People's Republic of China.
Eur J Pediatr. 2012 Feb;171(2):389-94. doi: 10.1007/s00431-011-1566-7. Epub 2011 Sep 13.
The purpose of this study was to examine the prevalence and the risk factors associated with obesity among school-aged children in Xi'an city. The body mass index of 6,740 children aged 7-18 years was compared with the Working Group on Obesity in China cut-off value to estimate the prevalence of obesity. A case-control study of obese and non-obese children was carried out to study risk factors for obesity. A standardized questionnaire was used to collect information on possible risk factors causing obesity. Univariate analysis was performed first to compare the distribution of risk factors between cases and controls. Conditional logistic regression analysis was used to assess independent risk factors of obesity. The results showed that the overall prevalence of obesity among school-aged children was 4.11% (4.63% for males and 3.57% for females). A total of 516 subjects (258 pairs of cases and controls) were included in the final analysis. High maternal education and a longer sleeping time were shown to be protective factors against obesity (odds ratio [OR] 0.148, 95% confidence interval [CI] 0.074-0.296 and OR 0.472, 95% CI 0.342-0.652, respectively). Whereas family history of diabetes (OR 5.498, 95% CI 2.606-11.600), parental overweight (OR 3.720, 95% CI 2.068-6.689), and watching television, playing video games, and using computers (OR 1.564, 95% CI 1.133-2.159) were associated with a higher obesity risk.
The prevalence of childhood obesity in Xi'an has become a concern, and sleeping time, sedentary behavior, and family factors have pronounced effects on the prevalence of obesity.
本研究旨在探讨西安市学龄儿童肥胖的流行状况及其相关危险因素。方法：比较了 6740 名 7-18 岁儿童的体重指数与中国工作组的肥胖切点值，以估计肥胖的流行率。对肥胖和非肥胖儿童进行病例对照研究，以研究肥胖的危险因素。采用标准化问卷收集可能导致肥胖的危险因素信息。首先进行单因素分析，比较病例组和对照组危险因素的分布情况。采用条件 logistic 回归分析评估肥胖的独立危险因素。结果：西安市学龄儿童肥胖的总体流行率为 4.11%（男生为 4.63%，女生为 3.57%）。共有 516 名受试者（258 对病例和对照）纳入最终分析。结果显示，母亲受教育程度高和睡眠时间长是肥胖的保护因素（比值比[OR]0.148，95%置信区间[CI]0.074-0.296 和 OR 0.472，95%CI 0.342-0.652）。而糖尿病家族史（OR 5.498，95%CI 2.606-11.600）、父母超重（OR 3.720，95%CI 2.068-6.689）以及看电视、玩视频游戏和使用电脑（OR 1.564，95%CI 1.133-2.159）与肥胖风险增加相关。结论：西安市儿童肥胖的流行率已引起关注，睡眠时间、久坐行为和家庭因素对肥胖的流行率有显著影响。
