Aloba Olutayo O, Adewuya Abiodun O, Ola Bola A, Mapayi Boladale M
Department of Mental Health, Obafemi Awolowo University Teaching Hospitals Complex, Ile-Ife, Osun State, Nigeria.
Sleep Med. 2007 Apr;8(3):266-70. doi: 10.1016/j.sleep.2006.08.003. Epub 2007 Mar 26.
Sleep-related problems and detection of them remain largely an unidentified public health issue, especially among university students. This study aims to assess the validity of the Pittsburgh Sleep Quality Index (PSQI) among Nigerian university students.
Five hundred and twenty students completed the PSQI, the 12-item General Health Questionnaire (GHQ-12) and questionnaires pertaining to socio-demographic details. The students were then interviewed for the diagnosis of insomnia according to the Diagnostic and Statistical Manual of Mental Disorders, Fourth edition (DSM-IV) and the International Classification of Sleep Disorders, revised criteria (ICSD-R).
The PSQI was of moderate value in screening for insomnia, with the best cut-off score at 5 (sensitivity 0.720, specificity 0.545, overall correct classification rate 0.554). The correlation between the PSQI and the GHQ-12 was 0.252 (p<0.001). A 3-factor model was generated by principal component analysis.
The psychometric value of PSQI in screening for insomnia among Nigerian students was moderate compared to what has been obtained in Western cultures. Nonetheless, it is still a useful instrument in the detection of sleep problems in this population.
与睡眠相关的问题及其检测在很大程度上仍是一个未被认识的公共卫生问题，尤其是在大学生中。本研究旨在评估匹兹堡睡眠质量指数（PSQI）在尼日利亚大学生中的有效性。
520名学生完成了PSQI、12项一般健康问卷（GHQ - 12）以及与社会人口学细节相关的问卷。然后根据《精神疾病诊断与统计手册》第四版（DSM - IV）和《睡眠障碍国际分类》修订标准（ICSD - R）对学生进行失眠诊断访谈。
PSQI在筛查失眠方面具有中等价值，最佳截断分数为5（敏感性0.720，特异性0.545，总体正确分类率0.554）。PSQI与GHQ - 12之间的相关性为0.252（p<0.001）。通过主成分分析生成了一个三因素模型。
与西方文化中所获得的结果相比，PSQI在尼日利亚学生中筛查失眠的心理测量价值中等。尽管如此，它仍是检测该人群睡眠问题的一种有用工具。
