Construct validity and factor structure of the Pittsburgh Sleep Quality Index among pregnant women in a Pacific-Northwest cohort.
Construct validity and factor structure of the Pittsburgh Sleep Quality Index among pregnant women in a Pacific-Northwest cohort.
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DOI：
10.1007/s11325-016-1313-4
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发表时间：
2016-03
期刊：
影响因子：
--
通讯作者：
Williams MA
中科院分区：
文献类型：
--
作者：
Qiu C;Gelaye B;Zhong QY;Enquobahrie DA;Frederick IO;Williams MA
怀孕期间睡眠质量差与不良产科和神经精神结局相关。尽管匹兹堡睡眠质量指数 (PSQI) 已常规用作男性和非孕妇的睡眠质量评估量表，但其心理测量特性尚未在美国孕妇中进行评估。我们试图评估 1,488 名孕妇的 PSQI 的结构效度和因素结构。采用结构化访谈来收集有关妊娠早期人口统计和睡眠特征的信息。患者健康问卷 9 (PHQ-9) 和抑郁、焦虑和压力量表 21 (DASS-21) 用于评估抑郁、焦虑和压力症状。使用了一致性指数、探索性和验证性因素分析（EFA 和 CFA）、相关性和逻辑回归程序。 PSQI 项目的信度系数 Cronbach’s alpha 为 0.74。 EFA 结果显示，PSQI 的旋转因子解包含两个特征值 >1.0 的因子，占方差的 52.8%。 PSQI与PHQ-9（rs=0.48）和DASS-21（rs=0.42）总分呈显着正相关。睡眠质量差的人（PSQI 总体得分>5）经历抑郁（OR=6.47；95%CI：4.56-9.18）、焦虑（OR=3.59；95%CI：2.45-5.26）和压力（OR=4.37；95%CI：2.88-6.65）的几率增加，这证明了良好的结构效度。 CFA 结果证实了 EFA 的双因素结构发现；并得出了表明拟合优度（比较拟合指数 = 0.975）和准确性（近似均方根误差 = 0.035）的令人放心的测量值。 PSQI对于评估孕妇睡眠质量具有良好的结构效度和信度。
Poor sleep quality during pregnancy is associated with adverse obstetric and neuropsychiatric outcomes. Despite its routine use as a sleep quality assessment scale among men and non-pregnant women, the psychometric properties of the Pittsburgh Sleep Quality Index (PSQI) have not been assessed among US pregnant women. We sought to evaluate the construct validity and factor structure of the PSQI among 1,488 pregnant women. A structured interview was used to collect information about demographics and sleep characteristics in early pregnancy. The Patient Health Questionnaire-9 (PHQ-9) and the Depression, Anxiety, and Stress Scale-21 (DASS-21) were used to assess symptoms of depression, anxiety and stress. Consistency indices, exploratory and confirmatory factor analyses (EFA and CFA), correlations, and logistic regression procedures were used. The reliability coefficient, Cronbach’s alpha for the PSQI items was 0.74. Results of the EFA showed that a rotated factor solution for the PSQI contained two factors with eigenvalues >1.0 accounting for 52.8% of the variance. The PSQI was significantly positively correlated with the PHQ-9 (rs=0.48) and DASS-21 (rs=0.42) total scores. Poor sleepers (PSQI global score>5) had increased odds of experiencing depression (OR=6.47; 95%CI: 4.56–9.18), anxiety (OR=3.59; 95%CI: 2.45–5.26) and stress (OR=4.37; 95%CI: 2.88–6.65) demonstrating evidence of good construct validity. CFA results corroborated the two-factor structure finding from the EFA; and yielded reassuring measures indicating goodness of fit (comparative fit index=0.975) and accuracy (root mean square error of approximation=0.035). The PSQI has good construct validity and reliability for assessing sleep quality among pregnant women.
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作者：
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作者：
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DOI：
10.1186/1472-6874-10-17
发表时间：
2010-05-14
期刊：
BMC women's health
影响因子：
--
作者：
Qiu C;Enquobahrie D;Frederick IO;Abetew D;Williams MA
通讯作者：
Williams MA