中国儿童和青少年的身体活动、屏幕观看时间与超重/肥胖：2017 年中国身体活动与健康研究-青少年专题的最新更新。
Physical activity, screen viewing time, and overweight/obesity among Chinese children and adolescents: an update from the 2017 physical activity and fitness in China-the youth study.
机构信息
Shanghai Research Center for Physical Fitness and Health of Children and Adolescents, Shanghai University of Sport, 399 Chang Hai Road, Shanghai, 200438, China.
School of Kinesiology, Shanghai University of Sport, 399 Chang Hai Road, Shanghai, 200438, China.
出版信息
BMC Public Health. 2019 Feb 15;19(1):197. doi: 10.1186/s12889-019-6515-9.
BACKGROUND
With increases in inactive lifestyles and mounting pressure for academic excellence in Chinese younger populations, lack of physical activity and increased prevalence of obesity have become a major public health concern in China. The purpose of this study is to provide updated estimates on the prevalence of meeting moderate-vigorous physical activity (MVPA) and screen viewing time guidelines, and overweight and obesity among Chinese school-aged children and adolescents, with a secondary aim examining variations in prevalence by sex, grade groupings, and residential location.
METHODS
The study sample came from the 2017 Physical Activity and Fitness in China-The Youth Study, a cross-sectional and national survey of 131,859 students (aged 7 to 19 years) from 986 public schools in China. Measures of MVPA, screen viewing time, and age- and sex-specific overweight and obese body mass index were used to calculate national prevalence estimates of Chinese school-aged children and adolescents.
RESULTS
In 2017, 34.1% (95% confidence interval [CI], 34.09-34.11%) of children and adolescents met MVPA guidelines and 65.4% (95% CI, 65.39-65.41%) adhered to screen viewing time guidelines. The prevalence of overweight and obesity was 15.1% (95% CI, 15.09-15.11%) and 10.7% (95% CI, 10.69-10.71%), respectively. Prevalence estimates differed by sex (boys, girls), grade grouping (primary schools, junior middle schools, junior high schools), and residential location (rural, urban).
CONCLUSIONS
There remains a low prevalence of meeting MVPA guidelines and high prevalence of overweight and obesity in Chinese school-aged children and adolescents. Future efforts should focus on monitoring the trend of these behavioral and health risk factors to inform school policies and programs aimed at increasing physical activity and reducing and preventing obesity in younger populations in China.
背景
随着中国年轻人群体生活方式日益不活跃以及在学业上的压力不断增大，缺乏身体活动和肥胖率的上升已成为中国主要的公共卫生关注点。本研究旨在提供最新的中国学龄儿童和青少年达到中等至剧烈身体活动（MVPA）和屏幕观看时间指南以及超重和肥胖流行率的估计值，并检查这些流行率在性别、年级分组和居住地点上的差异。
方法
本研究样本来自 2017 年中国体力活动与健康研究-青少年研究，这是一项在中国 986 所学校中对 131859 名学生（年龄 7 至 19 岁）进行的横断面和全国性调查。使用 MVPA、屏幕观看时间以及年龄和性别特异性超重和肥胖体质量指数来计算中国学龄儿童和青少年的全国流行率估计值。
结果
2017 年，34.1%（95%置信区间 [CI]，34.09-34.11%）的儿童和青少年达到了 MVPA 指南，65.4%（95% CI，65.39-65.41%）遵循了屏幕观看时间指南。超重和肥胖的流行率分别为 15.1%（95% CI，15.09-15.11%）和 10.7%（95% CI，10.69-10.71%）。流行率估计值因性别（男孩、女孩）、年级分组（小学、初中、高中）和居住地点（农村、城市）而异。
结论
中国学龄儿童和青少年达到 MVPA 指南的比例仍然较低，超重和肥胖的流行率仍然较高。未来的工作应重点监测这些行为和健康风险因素的趋势，为中国年轻人群体制定旨在增加身体活动和减少及预防肥胖的学校政策和计划提供信息。
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