Psychometric evaluation and normative data for the Karolinska Sleep Questionnaire
Psychometric evaluation and normative data for the Karolinska Sleep Questionnaire
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DOI：
10.1111/sbr.12024
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发表时间：
2013-10-01
影响因子：
1.1
通讯作者：
Nordin, Steven
中科院分区：
文献类型：
--
作者：
Nordin, Maria;Akerstedt, Torbjorn;Nordin, Steven
本研究的目的是验证卡罗林斯卡睡眠问卷的维度，内部一致性，结构和标准效度。另一个目标是提供规范性数据。使用了瑞典Vasterbotten环境健康研究的横截面数据。本研究中的3406名参与者，年龄在18至79岁之间，构成了年龄和性别分层的随机样本。沿着Karolinska睡眠问卷，参与者回答了医院焦虑和抑郁量表，感知压力量表和Shirom Melamed倦怠问卷，以评估结构效度。对Karolinska睡眠问卷中与夜间睡眠相关的问题进行因子分析，发现睡眠质量、非恢复性睡眠和睡眠呼吸暂停等维度。一个单独的因素分析的问题，关于白天嗜睡揭示了嗜睡的维度。睡眠质量、非恢复性睡眠和嗜睡维度显示近似正态分布，而睡眠呼吸暂停的分布呈正态偏态。所有维度均表现出良好的内部一致性。所有维度的结构效度均令人满意。使用DSM-IV失眠标准，将Karolinska睡眠问卷中的相关问题与睡眠呼吸暂停问题合并为失眠夜间症状指数。失眠症和睡眠呼吸暂停的患病率与其他研究结果一致，表明标准有效性良好。Karolinska睡眠问卷的维度和指数的良好心理测量特性表明它们可用于评估睡眠质量、非恢复性睡眠、睡眠呼吸暂停、嗜睡和失眠的夜间症状。
The study objective was to validate the Karolinska Sleep Questionnaire with regard to dimensionality, internal consistency, and construct and criterion validity. Another objective was to provide normative data. Data from the cross-sectional Vasterbotten Environmental Health Study in Sweden were used. The 3406 participants in this study, 18 to 79 years old, constituted a random sample stratified for age and sex. Along with the Karolinska Sleep Questionnaire, the participants responded to the Hospital Anxiety and Depression Scale, the Perceived Stress Scale, and the Shirom Melamed Burnout Questionnaire for assessing construct validity. Factor analyses of the questions in the Karolinska Sleep Questionnaire that relate to nocturnal sleep revealed the dimensions sleep quality, non-restorative sleep, and sleep apnea. A separate factor analysis on the questions regarding day time sleepiness revealed a sleepiness dimension. The sleep quality, non-restorative sleep, and sleepiness dimensions showed approximate normal distributions, whereas the distribution for sleep apnea was positively skewed. All dimensions showed good internal consistency. Satisfactory construct validity was found for all dimensions. Using the DSM-IV criteria of insomnia, relevant questions in the Karolinska Sleep Questionnaire were combined into an index of nocturnal symptoms of insomnia as were questions of sleep apnea. Prevalences of insomnia and sleep apnea correspond well to those of other studies, indicating good criterion validity. The favorable psychometric properties of the dimensions and indexes from the Karolinska Sleep Questionnaire suggest their use for assessing sleep quality, non-restorative sleep, sleep apnea, sleepiness and nocturnal symptoms of insomnia.