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目的探讨大学生视屏时间、体力活动现状与其超重/肥胖之间的关系,为预防控制超重肥胖提供参考。方法采取分层整群随机抽样的方法,2015年9月—2016年1月对淮南市4所大学抽取1 928名大学生进行问卷调查,并对纳入分析的大学生测量身高和体重。结果不同性别和父亲体型大学生体型分布差异有统计学意义(χ~2值分别为34.839,37.723,P值均<0.05)。调整年龄、性别、吸烟、被动吸烟、和室友关系、母亲文化程度、家庭经济状况、饮食等混杂因素后,视屏时间≤2 h/d可以降低超重的危险性(OR=0.77,95%CI=0.31~0.91),同时肥胖的危险性也降低(OR=0.76,95%CI=0.35~0.94)。大强度体力活动与超重/肥胖之间的关联无统计学意义。调整年龄、性别、吸烟、被动吸烟、和室友关系、母亲文化程度、家庭经济状况、饮食等混杂因素后,视屏时间≤2 h/d和中等体力活动≥5次/周交互作用可以更大程度降低超重发生的风险(OR=0.50,95%CI=0.10~0.82),同时也降低肥胖的危险性(OR=0.47,95%CI=0.26~0.96)。结论视屏时间较长和缺乏充足的体力活动与大学生超重和肥胖的发生密切相关。
Objective To explore the relationship between college students’ screen time, physical activity status and their overweight / obesity and provide a reference for the prevention and control of overweight and obesity. Methods A stratified cluster random sampling method was adopted. From September 2015 to January 2016, 1 928 college students were drawn from 4 universities in Huainan City for questionnaire survey, and the height and weight of college students were analyzed. Results There was significant difference in body size distribution between the male and female students (χ ~ 2 = 34.839 and 37.723, P <0.05 respectively). Adjusting age, sex, smoking, passive smoking, and roommate relationships, mother’s education, family economics, diet, and other confounding factors reduced the risk of overweight (≤ 0.77, 95% CI = 0.31 to 0.91), and the risk of obesity decreased (OR = 0.76, 95% CI = 0.35-0.94). The correlation between high intensity physical activity and overweight / obesity was not statistically significant. Adjusting age, gender, smoking, passive smoking, and roommate relationship, mother’s education, family economics, diet and other confounding factors, the screen time ≤ 2 h / d and moderate physical activity ≥ 5 times / week interaction can be a greater degree Reduce the risk of overweight (OR = 0.50, 95% CI = 0.10 ~ 0.82), but also reduce the risk of obesity (OR = 0.47, 95% CI = 0.26 ~ 0.96). Conclusion The longer visual screen and lack of adequate physical activity are closely related to the occurrence of overweight and obesity in college students.