Wang Z H, Dong Y H, Song Y, Yang Z P, Ma J
School of Public Health and Institute of Child and Adolescent Health, Peking University, Beijing 100191, China.
Zhonghua Liu Xing Bing Xue Za Zhi. 2017 Mar 10;38(3):341-345. doi: 10.3760/cma.j.issn.0254-6450.2017.03.013.
To explore the prevalence of physical activity time <1 hour and related factors in students aged 9-22 years in China. A total of 220 159 students (110 039 boys and 110 120 girls) aged 9-22 years who completed the questionnaire of physical activity and lifestyle behaviors were selected from " 2014 National Physical Fitness and Health Surveillance" for the current study. All the participants were divided into 2 groups, i.e. physical activity time <1 hour and physical activity time ≥1 hour according the suggestion of Central Government, stratified by age and gender. (2) tests were used to compare the difference in the prevalence of physical activity time <1 hour between boys and girls in every age groups. Univariate and multivariate log-binomial regression models were used to explore the factors that influenced the prevalence of physical activity time <1 hour. The boy's prevalence of physical activity time <1 hour was 73.3%, with the lowest (57.0%) in 9-years-old group, and highest (82.5%) in 18 years old group. The girl's prevalence of physical activity time <1 hour was 79.1%, with the lowest (60.1%) in 9-years-old group, and highest (89.8%) in 21 years old group. Overall, The prevalence of physical activity time <1 hour was significantly higher in girls than in boys (<0.001), and the prevalence were significantly higher in girls than in boys in all the age groups (<0.001), and it was observed that the prevalence of physical activity <1 hour increased with age in both boys and girls (<0.001). Multivariate log-binomial regression model found that being girl (=1.05, 95: 1.05-1.06), parents' disliking children to participate physical activity (=1.08, 95: 1.07-1.09), heavy homework (=1.13, 95: 1.12-1.14), long homework time ( =1.08, 95: 1.07-1.08), long time spending on electronic screen watching (=1.01, 95: 1.00-1.01) and disliking physical class (=1.11, 95: 1.10-1.12) could be the risk factors for physical activity time <1 hour, however, living in rural area (=0.99, 95: 0.98-0.99) and no supporting from parents for children to participate physical activity (=0.99, 95: 1.98-1.00) could be the protective factors, but no consistent association with the time of TV watching was observed (=0.226). The prevalence of physical activity time <1 hour was high in students aged 9-22 years in China. Female, parents; disliking children to participate physical activity, heavy homework, long homework time, long electronic screen watching time and disliking physical class might be the risk factors.
为探究中国9至22岁学生体育活动时间不足1小时的患病率及其相关因素。本研究从“2014年全国学生体质与健康调研”中选取了220159名9至22岁完成体育活动及生活方式行为问卷的学生（男生110039名，女生110120名）。所有参与者根据中央政府的建议，按年龄和性别分层，分为体育活动时间不足1小时组和体育活动时间≥1小时组。采用（此处原文未提及具体检验方法，无法准确翻译）检验比较各年龄组男女生体育活动时间不足1小时患病率的差异。运用单因素和多因素对数二项回归模型探究影响体育活动时间不足1小时患病率的因素。男生体育活动时间不足1小时的患病率为73.3%，其中9岁组最低（57.0%），18岁组最高（82.5%）。女生体育活动时间不足1小时的患病率为79.1%，9岁组最低（60.1%），21岁组最高（89.8%）。总体而言，女生体育活动时间不足1小时的患病率显著高于男生（P<0.001），各年龄组女生患病率均显著高于男生（P<0.001），且观察到男女生体育活动不足1小时的患病率均随年龄增长而升高（P<0.001）。多因素对数二项回归模型发现，女性（比值比=1.05，95%置信区间：1.05 - 1.06）、父母不喜欢孩子参加体育活动（比值比=1.08，95%置信区间：1.07 - 1.09）、作业繁重（比值比=1.13，95%置信区间：1.12 - 1.14）、作业时间长（比值比=1.08，95%置信区间：1.07 - 1.08）、电子屏幕观看时间长（比值比=1.01，95%置信区间：1.00 - 1.01）以及不喜欢体育课（比值比=1.11，95%置信区间：1.10 - 1.12）可能是体育活动时间不足1小时的危险因素，然而，生活在农村地区（比值比=0.99，95%置信区间：0.98 - 0.99）以及父母不支持孩子参加体育活动（比值比=0.99，95%置信区间：0.98 - 1.00）可能是保护因素，但未观察到与看电视时间有一致关联（P = 0.226）。中国9至22岁学生体育活动时间不足1小时的患病率较高。女性、父母不喜欢孩子参加体育活动、作业繁重、作业时间长、电子屏幕观看时间长以及不喜欢体育课可能是危险因素。
