中国三省（直辖市）大学生身体活动不足与抵抗力下降症状的关联

土小红; 刘聪; 戴钰馨; 王翠梅; 宋永晶; 蒋竞; 卢金逵

doi:10.3784/jbjc.202207300341

中国三省（直辖市）大学生身体活动不足与抵抗力下降症状的关联

Association between insufficient physical activity and decreased resistibility in college students in three provinces (municipality) in China

摘要

摘要:
目的分析中国三省（直辖市）大学生身体活动不足与抵抗力下降症状的关联。
方法 2021年11—12月采取整群抽样法抽取湖北省、江西省和重庆市4所高校9 349名大学生进行问卷调查。调查内容包括人口学变量、抵抗力下降症状、体力活动情况。使用SPSS 19.0软件进行统计分析，采用χ²检验分析不同人口学特征大学生抵抗力下降症状的差异，运用logistic回归分析大学生身体活动与抵抗力下降症状的关联。
结果大学生抵抗力下降症状检出率为17.5%。 logistic回归分析显示，与每日白天户外活动＜30 min相比，每日白天户外活动超过30 min（30 min～<2 h、2 h～<4 h、4 h～<6 h、≥ 6 h）与大学生抵抗力下降症状呈负相关（OR=0.54～0.64，P值均＜0.01）。分层分析显示，每日白天户外活动超过30 min与男生和女生抵抗力下降症状均呈负相关（男生OR=0.51～0.67，女生OR=0.44～0.60，P值均<0.05），男生每日白天户外活动30 min～<2 h 除外。
结论户外活动不足可能是湖北省、江西省和重庆市大学生抵抗力降低症状的风险因素。

Abstract:
Objective To analyze the association between insufficient physical activity and the symptoms of decreased resistibility in the college students in Hubei, Jiangxi and Chongqing provinces (municipality) in China.
Methods From November to December 2021, a total of 9 349 college students from 4 universities in Hubei, Jiangxi and Chongqing were selected by cluster sampling and investigated by questionnaire. The survey collected the information about the demographic variables, symptoms of decreased resistibility, and physical activity of the college students, and χ² test was used to analyze the difference in symptoms of decreased resistibility in college students with different demographic characteristics, and Logistic regression analysis was used to evaluate the association between physical activity and symptom of decreased resistibility in the college students with statistical software SPSS 19.0.
Results The detection rate of symptom of decreased resistibility was 17.5%. Logistic regression analysis showed that compared with daily outdoor activities <30 min, daily outdoor activities more than 30 min（30 min−<2 h, 2 h−<4 h, 4 h−<6 h, ≥6 h） were negatively correlated with the symptom of decreased resistibility in the college students (OR=0.54−0.64, all P<0.001). Stratified analysis showed that daily outdoor activities for more than 30 minutes were negatively correlated with the symptom of decreased resistibility in both the boy students (OR=0.51−0.67) and the girl students (OR=0.44−0.60 ) (all P<0.05), except for 30 min−<2 h in the boy students.
Conclusion The lack of outdoor activities might be the risk factor for symptom of decreased resistibility in the college students.

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