Zagalaz-Anula Noelia, Hita-Contreras Fidel, Martínez-Amat Antonio, Cruz-Díaz David, Lomas-Vega Rafael
Department of Health Sciences, Faculty of Health Sciences, University of Jaén, Jaén, Spain.
Menopause. 2017 Jul;24(7):824-831. doi: 10.1097/GME.0000000000000835.
This study aimed to analyze the reliability and validity of the Spanish version of the Medical Outcomes Study Sleep Scale (MOS-SS), and its ability to discriminate between poor and good sleepers among a Spanish population with vestibular disorders.
In all, 121 women (50-76 years old) completed the Spanish version of the MOS-SS. Internal consistency, test-retest reliability, and construct validity (exploratory factor analysis) were analyzed. Concurrent validity was evaluated using the Pittsburgh Sleep Quality Index and the 36-item Short Form Health Survey. To analyze the ability of the MOS-SS scores to discriminate between poor and good sleepers, a receiver-operating characteristic curve analysis was performed.
The Spanish version of the MOS-SS showed excellent and substantial reliability in Sleep Problems Index I (two sleep disturbance items, one somnolence item, two sleep adequacy items, and awaken short of breath or with headache) and Sleep Problems Index II (four sleep disturbance items, two somnolence items, two sleep adequacy items, and awaken short of breath or with headache), respectively, and good internal consistency with optimal Cronbach's alpha values in all domains and indexes (0.70-0.90). Factor analysis suggested a coherent four-factor structure (explained variance 70%). In concurrent validity analysis, MOS-SS indexes showed significant and strong correlation with the Pittsburgh Sleep Quality Index total score, and moderate with the 36-item Short Form Health Survey component summaries. Several domains and the two indexes were significantly able to discriminate between poor and good sleepers (P < 0.05). Optimal cut-off points were above 20 for "sleep disturbance" domain, with above 22.22 and above 33.33 for Sleep Problems Index I and II.
The Spanish version of the MOS-SS is a valid and reliable instrument, suitable to assess sleep quality in Spanish postmenopausal women, with satisfactory general psychometric properties. It discriminates well between good and poor sleepers.
本研究旨在分析西班牙语版医学结局研究睡眠量表（MOS - SS）的信度和效度，以及其在患有前庭疾病的西班牙人群中区分睡眠质量差和睡眠质量好的人的能力。
共有121名年龄在50 - 76岁之间的女性完成了西班牙语版的MOS - SS。分析了内部一致性、重测信度和结构效度（探索性因素分析）。使用匹兹堡睡眠质量指数和36项简短健康调查问卷评估了同时效度。为了分析MOS - SS得分区分睡眠质量差和睡眠质量好的人的能力，进行了受试者工作特征曲线分析。
西班牙语版的MOS - SS在睡眠问题指数I（两个睡眠干扰项目、一个嗜睡项目、两个睡眠充足项目以及因呼吸急促或头痛而醒来）和睡眠问题指数II（四个睡眠干扰项目、两个嗜睡项目、两个睡眠充足项目以及因呼吸急促或头痛而醒来）中分别显示出优异且显著的信度，并且在所有领域和指标中具有良好的内部一致性，Cronbach's alpha值最佳（0.70 - 0.90）。因素分析表明存在一个连贯的四因素结构（解释方差70%）。在同时效度分析中，MOS - SS指标与匹兹堡睡眠质量指数总分显示出显著且强的相关性，与36项简短健康调查问卷分量表总结显示出中等相关性。几个领域和两个指标能够显著区分睡眠质量差和睡眠质量好的人（P < 0.05）。“睡眠干扰”领域的最佳截断点高于20，睡眠问题指数I和II的最佳截断点分别高于22.22和高于33.33。
西班牙语版的MOS - SS是一种有效且可靠的工具，适用于评估西班牙绝经后女性的睡眠质量，具有令人满意的总体心理测量特性。它能很好地区分睡眠质量好和睡眠质量差的人。
