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匹兹堡睡眠质量指数用于天津市公务员人群的信度和效度研究

钟春德1,谢娟2,许军3,冯丽仪4   

  1. 1. 天津医科大学公共卫生学院流行病与卫生统计专业
    2. 天津医科大学公共卫生学院流行病学教研室
    3. 南方医科大学南方医院
    4. 南方医科大学人文与管理学院
  • 收稿日期:2011-05-17 修回日期:2011-11-08 出版日期:2012-02-15 发布日期:2012-02-15
  • 通讯作者: 谢娟

Study on reliability and validity of Pittsburgh Sleep Quality Index among civil servants in Tianjin

  • Received:2011-05-17 Revised:2011-11-08 Published:2012-02-15 Online:2012-02-15

摘要: 目的:考评匹兹堡睡眠质量指数(PSQI)在天津市公务员人群中的信度和效度,了解其睡眠质量的分布状况。方法:通过分层随机整群抽样方法从天津市公务员人群中抽取调查对象,采用PSQI对其进行调查,获得有效样本3 610例。通过计算折半信度、Cronbach’s α系数、区分效度、结构效度等指标考察PSQI的信度和效度。结果:天津市3 610名公务员PSQI平均得分为4.53±2.96,睡眠障碍的发生率为13.82%。不同年龄、学历、婚姻状况、家庭人均月收入组间PSQI总分的差异具有统计学意义,而不同性别间差异无统计学意义。PSQI的折半信度为0.881,Cronbach’s α系数为0.746。在结构效度的评价中,因子分析所产生的3个公因子可解释总变异的52.91%,大多数条目在其中1个因子上有较高负荷值,而对其他因子的负荷值则相对较低。结论:天津市公务员人群睡眠障碍的发生率较高,PSQI应用于天津市公务员人群具有较好的信度和效度。

关键词: 匹兹堡睡眠质量指数, 睡眠质量, 公务员, 信度, 效度

Abstract: Objective: To assess the reliability and validity of Pittsburgh Sleep Quality Index (PSQI) and investigate the sleep quality status among civil servants in Tianjin. Method: The participants were selected randomly from civil servants in Tianjin by using stratified cluster sampling method and investigated with PSQI, 3 610 valid samples were obtained. The reliability and validity of PSQI was evaluated by calculating the split-half reliability, Cronbach’s alpha coefficient, construct validity and discriminate validity. Result: The average score of PSQI is 4.53±2.96, the incidence of sleep disorders is 13.82%. Mean difference of PSQI score between different age, education, marital status, family income groups is statistically significant, while no difference is found between gender groups. The split-half reliability of PSQI is 0.881, Cronbach’s α coefficient is 0.746. Factor analysis produced three components which explained 52.91% of total variance. Most items have a higher factor loading in one of the three factors, while relatively lower in other factors. Conclusion: The incidence of sleep disorders is rather high in Tianjin civil servants, PSQI has good reliability and validity.

Key words: Pittsburgh Sleep Quality Index, sleep quality, civil servant, reliability, validity