为了了解医学生中微信使用的具体现况，分析微信使用对睡眠质量的影响，为指导医学生正确使用微信、改善医学生睡眠质量提供科学理论依据。笔者以班级为单位，采用整群抽样的方式随机抽取某市3所医学类高校1至4年级的学生作为调查对象，使用自拟微信使用情况调查表以及匹兹堡睡眠质量指数（PSQI）进行调查，将被调查者中的1720名微信使用者作为研究对象。单因素分析使用两独立样本t检验和方差分析对PSQI得分进行比较；多因素分析使用多元线性回归模型分析医学生PSQI得分的影响因素。结果显示：调查者中共有1720名微信使用者，占调查总体70．5％。微信使用者中完成 PSQI量表者共1515人，完成率为88．1％，PSQI平均得分为（5．37±2．70）分。PSQI得分在不同性别（t＝4．037，P＜0．001），不同年级间（F＝5．999，P＜0．001）存在差异，而城乡学生间PSQI得分无差异（t＝0．291，P＝0．771）。此外，微信使用情况中，每日使用时间长、课堂上微信使用频率高、课堂上微信使用影响听课效率、微信使用对于学习的影响大、经常使用朋友圈功能、因微信使用减少睡眠时间、因微信使用影响考试成绩、因微信使用导致不良生活习惯的医学生PSQI得分均高于其他学生。多元线性回归显示：性别、年级、课堂上微信使用频率、课堂上使用微信的影响、微信使用对于学习的影响、是否使用朋友圈功能、是否因微信使用导致不良生活习惯是PSQI得分的影响因素。结论：医学生睡眠质量影响因素是多方面的，微信的不良使用是其中的一类原因，应指导医学生正确使用微信，从而改善睡眠质量。%Objective:To study status of WeChat usage and sleep‐related impact among medical college students in Hefei and to improve their sleep quality by providing appropriate guidance how to use WeChat .Methods :Stratified cluster sampling was used to bring medical college students from Hefei into study .The self‐designed questionnaire about WeChat use and Pittsburgh Sleep Quality Index (PSQI) was used to measure situation of WeChat use and sleep quality .1720 students who use WeChat were set as object of this study .Results :In this study ,there were 1 720 students (70.5% ) using WeChat .Among these students who use WeChat ,1 515 users had completed the questionnaire of PSQI which account for 88.1% .The overall mean PQSI score was 5.37 ± 2.70 and difference of PSQI score could be found in genders (t= 4.037 , P< 0.001) and grades (F= 5.999 , P< 0.001) . Besides ,we also found duration of WeChat use ,frequency of WeChat use in class ,effect of WeChat use in class ,effect of WeChat use on study ,effect of WeChat use on sleep duration ,effect of WeChat use on examination performance ,effect of WeChat use on life style and use of “Circle of Friends” in WeChat could influence the PSQI score of students .Conclusion :There were many influencing factors on sleep quality of medical college students and the misuse of WeChat could significantly reduce quality of sleep .Effective intervention should be taken to guide medical college students in WeChat use and improve sleep quality of them .
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