Psychometric evaluation of the Epworth Sleepiness Scale in an obstetric population
Psychometric evaluation of the Epworth Sleepiness Scale in an obstetric population
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DOI：
10.1016/j.sleep.2012.10.007
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发表时间：
2013-01-01
期刊：
影响因子：
4.8
通讯作者：
Roberts, James M.
中科院分区：
文献类型：
--
作者：
Baumgartel, Kelley L.;Terhorst, Lauren;Roberts, James M.
背景：Epworth嗜睡量表（ESS）最初用于测量受各种睡眠障碍影响的患者的日间睡眠倾向。产科研究已经用ESS测量了孕妇的睡意，尽管心理测量分析和维度评估从未在这一人群中进行过。目的：目的是在产科人群中进行ESS的心理测量评估。该设计是对产前暴露和预防子痫前期III （pep）研究的受试者进行二次数据分析。接受产前护理的受试者在宾夕法尼亚州匹兹堡的Magee-Women's Hospital UPMC接受产前护理，包括337名完成ESS的孕早期孕妇。方法：采用SPSS和M-Plus软件进行主成分分析和验证性因子分析。此外，采用生活取向测验（LOT）评估信度和构念效度。最后，利用匹兹堡睡眠质量指数（PSQI）的5e项调查了白天嗜睡与打鼾之间的关系。结果：PCA与varimax旋转产生了两个因素，解释了大约50%的方差，CFA结果验证了这两个因素的解决方案。总体Cronbach's alpha（0.751）显示中等信度（因子1 α = 0.754；因子2 α = 0.524）。建立了收敛效度和判别效度。结论：ESS适用于产科人群测量白天嗜睡。未来的工作应该包括在不同的孕妇群体中对ESS进行额外的评估。(C) 2012 Elsevier b.v.版权所有
Background: The Epworth Sleepiness Scale (ESS) was initially developed to measure daytime sleep propensity in patients affected by a variety of sleep disorders. Obstetrical research has measured sleepiness in pregnant women with the ESS, although psychometric analyses and dimensionality evaluations have never been conducted with this population.Objective: The objective was to perform a psychometric evaluation of the ESS in an obstetric population. The design was a secondary data analysis of the subjects enrolled in the Prenatal Exposures and Preeclampsia Prevention III (PEPP) study. The setting for the subjects who received prenatal care was at Magee-Women's Hospital UPMC in Pittsburgh, Pennsylvania and included 337 pregnant women in their first trimester that completed the ESS.Methods: Principal components analysis and confirmatory factor analysis were performed using SPSS and M-Plus. Additionally, reliability was assessed and construct validity was measured using the Life Orientation Test (LOT). Lastly, a relationship between daytime sleepiness and snoring was investigated using item 5e from the Pittsburgh Sleep Quality Index (PSQI).Results: PCA with varimax rotation yielded two factors that explained approximately 50% of the variance and CFA results verified this two-factor solution. An overall Cronbach's alpha (0.751) revealed moderate reliability (Factor 1 alpha = .754; Factor 2 alpha = .524). Both convergent and discriminant validity were established.Conclusion: The ESS is appropriate for use in an obstetric population to measure daytime sleepiness. Future work should include additional evaluations of the ESS in a diverse group of pregnant women. (C) 2012 Elsevier B. V. All rights reserved.