Gao Di, Li Yanhui, Yang Zhaogeng, Ma Ying, Chen Manman, Dong Yanhui, Zou Zhiyong, Ma Jun
Institute of Child and Adolescent Health, School of Public Health, Peking University, Beijing, China.
Key Laboratory of Reproductive Health, National Health Commission of the People's Republic of China, Beijing, China.
Front Pediatr. 2021 Aug 19;9:697047. doi: 10.3389/fped.2021.697047. eCollection 2021.
Obesity has become a serious problem threatening the health of children and adolescents, and China's one-child policy has affected family structure and parenting practice, which may result in several adverse health outcomes. The present study aims to investigate the association between single-child status and the risk of abdominal obesity in Chinese adolescents and also to compare the differences in the risk of unideal energy-related behaviors. Data were obtained from a school-based cross-sectional survey conducted in seven provinces of China, in 2012. A total of 31,291 students aged 7-17 years were recruited in this study. Anthropometric measurements were conducted to assess height and waist circumference, and questionnaires were used to obtain information of single-child status, parental educational attainment, parental weight status, and offspring energy-related behaviors. Multivariate logistic regression models were used to estimate the odds ratio (OR) and 95% confidence intervals (95% CI) of single-child status and odds of childhood abdominal obesity and energy-related behaviors. The prevalence of abdominal obesity was 18.2% in single children, which was higher than that of non-single children (13.7%). The prevalence was also higher in single children in different sex and residence subgroups. Logistic regression models showed that single children had 1.33 times (OR: 1.33, 95% CI: 1.24-1.43, < 0.001) higher odds of abdominal obesity compared to non-single children. Single children had 1.08 times higher odds of physical inactivity (OR: 1.08, 95% CI: 1.03-1.14, = 0.004), 1.13 times higher odds of excessive sugar-sweetened beverages (SSBs) consumption (OR: 1.13, 95% CI: 1.05-1.23, = 0.002), and 1.08 times more likely to eat out (OR: 1.08, 95% CI: 1.02-1.13, = 0.006). Those associations were more remarkable in single girls. Being a single child may be associated with a higher odds of childhood abdominal obesity and unhealthy energy-related behaviors. Future interventions and strategies to prevent abdominal obesity should focus on this high-risk population.
肥胖已成为威胁儿童和青少年健康的严重问题，而中国的独生子女政策影响了家庭结构和育儿方式，这可能导致多种不良健康后果。本研究旨在调查中国青少年独生子女身份与腹部肥胖风险之间的关联，并比较不理想的能量相关行为风险的差异。数据来自2012年在中国七个省份进行的一项基于学校的横断面调查。本研究共招募了31291名7至17岁的学生。进行人体测量以评估身高和腰围，并使用问卷获取独生子女身份、父母教育程度、父母体重状况以及子女能量相关行为的信息。多元逻辑回归模型用于估计独生子女身份的优势比（OR）和95%置信区间（95%CI）以及儿童腹部肥胖和能量相关行为的几率。独生子女中腹部肥胖的患病率为18.2%，高于非独生子女（13.7%）。在不同性别和居住亚组的独生子女中，患病率也更高。逻辑回归模型显示，与非独生子女相比，独生子女腹部肥胖的几率高1.33倍（OR：1.33，95%CI：1.24 - 1.43，<0.001）。独生子女身体活动不足的几率高1.08倍（OR：1.08，95%CI：1.03 - 1.14，=0.004），过量饮用含糖饮料（SSB）的几率高1.13倍（OR：1.13，95%CI：1.05 - 1.23，=0.002），外出就餐的可能性高1.08倍（OR：1.08，95%CI：1.02 - 1.13，=0.006）。这些关联在独生子女女孩中更为显著。独生子女身份可能与儿童腹部肥胖几率较高以及不健康的能量相关行为有关。未来预防腹部肥胖的干预措施和策略应关注这一高危人群。
