匹兹堡睡眠质量指数在某高校医学生中的信度与效度评价

发布时间：2018-04-18 22:19

本文选题：睡眠障碍 + 匹兹堡睡眠质量指数　；参考：《北京大学学报(医学版)》2016年03期

【摘要】：目的:应用中文版匹兹堡睡眠质量指数(Pittsburgh sleep quality index,PSQI)调查某高校医学生的睡眠质量,以评价其在该人群中的信度和效度。方法:通过分层整群随机抽样方法从北京市某医学院抽取603名本科生,使用中文版PSQI量表和自行编制的问卷进行调查,再随机抽取171名调查对象于1个月后重测,采用多种信度和效度指标对量表进行评价。结果:调查对象PSQI总分平均为5.38±2.34,量表条目的总体Cronbach’sα系数为0.734,分半信度系数为0.655;重复测量的PSQI总分相关系数为0.530,前后差异无统计学意义(P0.05)。在结构效度评价中,验证性因子分析结果表明二因子结构模型为最优模型(拟合优度指数0.949,均方根残差0.083,比较拟合指数0.699),"催眠药物应用"维度因子载荷最低。以患者主观睡眠质量的好、差作为分组效标,PSQI总分的组间差异有统计学意义(P0.001),根据PSQI总分绘制的ROC曲线下面积为0.908(95%CI:0.880~0.936)。结论:该量表用于医学生的睡眠质量评价具有较高的信度与效度,是该人群睡眠研究或筛检的有效工具。
[Abstract]:Objective: to investigate the sleep quality of medical students in a university by using Pittsburgh sleep quality index (PSQI) in order to evaluate the reliability and validity of the sleep quality index.Methods: a total of 603 undergraduates were selected from a medical college in Beijing by stratified cluster random sampling. The Chinese version of PSQI scale and the self-made questionnaire were used to investigate.A variety of reliability and validity indicators were used to evaluate the scale.Results: the average total score of PSQI was 5.38 卤2.34, the total Cronbach's 伪 coefficient was 0.734, the split-half reliability coefficient was 0.655, and the correlation coefficient of repeated measurement PSQI total score was 0.530, there was no significant difference between before and after measurement (P 0.05).In the evaluation of structural validity, the results of confirmatory factor analysis showed that the two-factor structural model was the optimal model (goodness of fit index 0.949, root mean square residuals 0.083, comparison fitting index 0.699g), and the factor load of "hypnotic application" dimension was the lowest.The difference of the total score of PSQI was statistically significant (P 0.001). The area under the ROC curve plotted according to the total score of PSQI was 0.90895 CI: 0.880,0.936.Conclusion: the scale has high reliability and validity in the evaluation of sleep quality of medical students and is an effective tool for sleep research or screening.
【作者单位】：北京大学公共卫生学院流行病与卫生统计学系;香港中文大学赛马会公共卫生与基层医疗学院;
【基金】：社区健康干预项目(牛津健康联盟·中国·杭州)资助~~
【分类号】：R740

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