Zhong Qiu-Yue, Gelaye Bizu, Sánchez Sixto E, Williams Michelle A
Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA.
Universidad Peruana de Ciencias Aplicadas, Lima, Peru.
J Clin Sleep Med. 2015 Aug 15;11(8):869-77. doi: 10.5664/jcsm.4936.
We sought to evaluate the construct validity and factor structure of the Spanish-language version of the Pittsburgh Sleep Quality Index (PSQI) among pregnant Peruvian women.
A cohort of 642 women were interviewed at ≤ 16 weeks of gestation. During interview, we ascertained information about lifestyles, demographics, sleep characteristics, and mood symptoms. Stress induced sleep disturbance, depressive symptoms, and anxiety symptoms were evaluated using the Ford Insomnia Response to Stress Test (FIRST), Patient Health Questionnaire-9 (PHQ-9), and Generalized Anxiety Disorder-7 (GAD-7) assessment scales, respectively. Consistency indices, exploratory and confirmatory factor analyses, correlations, and logistic regressions were used.
Both exploratory and confirmatory factor analyses indicated a three-factor solution: sleep quality, sleep efficiency, and sleep medication. We observed significantly positive correlations of the PSQI with the FIRST (0.42), the PHQ-9 (0.49), and the GAD-7 (0.46). Poor sleepers (PSQI global score > 5) had significantly increased odds of experiencing stress-induced sleep disturbance (odds ratio, OR = 3.57; 95% CI: 2.40, 5.31), depression (OR = 5.48; 95% CI: 3.58, 8.37), and generalized anxiety disorder (OR = 4.57; 95% CI: 3.08, 6.76).
The Spanish-language version of the PSQI instrument was found to have good construct validity among pregnant Peruvian women. Consistent with some other studies, the PSQI was found to have a three-factor structure. Further assessment and validation studies are needed to determine whether the three, factor-specific scoring of the PSQI is favored over the PSQI global score in diverse populations.
我们试图评估匹兹堡睡眠质量指数（PSQI）西班牙语版在秘鲁孕妇中的结构效度和因子结构。
对642名妊娠≤16周的女性进行队列研究。在访谈过程中，我们确定了有关生活方式、人口统计学、睡眠特征和情绪症状的信息。分别使用福特失眠应激反应测试（FIRST）、患者健康问卷9项（PHQ-9）和广泛性焦虑障碍7项（GAD-7）评估量表对压力诱导的睡眠障碍、抑郁症状和焦虑症状进行评估。使用了一致性指数、探索性和验证性因子分析、相关性分析和逻辑回归分析。
探索性和验证性因子分析均表明存在三因子解决方案：睡眠质量、睡眠效率和助眠药物。我们观察到PSQI与FIRST（0.42）、PHQ-9（0.49）和GAD-7（0.46）之间存在显著正相关。睡眠不佳者（PSQI总分>5）经历压力诱导的睡眠障碍（优势比，OR = 3.57；95%置信区间：2.40，5.31）、抑郁（OR = 5.48；95%置信区间：3.58，8.37）和广泛性焦虑障碍（OR = 4.57；95%置信区间：3.08，6.76）的几率显著增加。
发现PSQI工具的西班牙语版在秘鲁孕妇中具有良好的结构效度。与其他一些研究一致，发现PSQI具有三因子结构。需要进一步的评估和验证研究，以确定在不同人群中，PSQI的三因子特异性评分是否优于PSQI总分。
