Kerman Neuroscience Research Center, Kerman University of Medical Science, Kerman, Iran.
Sleep Breath. 2012 Mar;16(1):79-82. doi: 10.1007/s11325-010-0478-5. Epub 2011 May 26.
There is a high worldwide prevalence of sleep quality disturbances, and sleep disturbances have been associated with numerous diseases. Thus, it is important to assess sleep quality. The Pittsburgh Sleep Quality Index (PSQI) is a self-rating questionnaire that can be completed within 5 min, but no Persian language version is available.
We translated the PSQI into Persian and then back into English to ensure the accuracy of the translation. A total of 125 psychiatric patients (generalized anxiety disorder, n = 37; major depression, n = 35; schizophrenia, n = 28; primary insomnia, n = 25) and 133 controls completed our Persian version of this questionnaire. Internal consistency, construct validity, and sensitivity and specificity of the PSQI were assessed.
The mean ages (±SD) of the patient and control groups were 36.8 years (±13.9) and 34.2 years (±9.8), respectively (p = 0.08). Cronbach's alpha coefficient for all subjects was 0.77 and was 0.52 for the patient group and 0.78 for the control group. The corrected item-total correlations ranged from 0.30 to 0.75 for the seven component scores of the PSQI. When the general health questionnaire-12 was used as a measure of psychiatric morbidity, it was well correlated with the PSQI scores (r = 0.54, p < 0.001). The sensitivity and specificity of discrimination of insomniac patients from control subjects were 94% and 72% for a PSQI cutoff value of 5 and 85% and 84% for a PSQI cutoff value of 6.
The psychometric properties of the Persian version of the PSQI were acceptable.
睡眠质量障碍在全球范围内的患病率很高，睡眠障碍与许多疾病有关。因此，评估睡眠质量很重要。匹兹堡睡眠质量指数（PSQI）是一种自评问卷，可以在 5 分钟内完成，但没有波斯语版本。
我们将 PSQI 翻译成波斯语，然后再翻译成英语，以确保翻译的准确性。共有 125 名精神科患者（广泛性焦虑障碍，n=37；重度抑郁症，n=35；精神分裂症，n=28；原发性失眠，n=25）和 133 名对照者完成了我们的 PSQI 波斯语版本。评估了 PSQI 的内部一致性、结构效度以及敏感性和特异性。
患者组和对照组的平均年龄（±SD）分别为 36.8 岁（±13.9）和 34.2 岁（±9.8）（p=0.08）。所有受试者的克朗巴赫α系数为 0.77，患者组为 0.52，对照组为 0.78。PSQI 七个组成部分得分的校正项目-总分相关性范围为 0.30 至 0.75。当使用一般健康问卷-12 作为精神疾病的衡量标准时，它与 PSQI 评分相关性良好（r=0.54，p<0.001）。PSQI 截断值为 5 时，鉴别失眠患者和对照组的敏感性和特异性分别为 94%和 72%；PSQI 截断值为 6 时，敏感性和特异性分别为 85%和 84%。
PSQI 波斯语版本的心理测量特性是可以接受的。
