Reliability and validity of the Spanish version of the Pittsburgh Sleep Quality Index (PSQI) in patients with fibromyalgia
Reliability and validity of the Spanish version of the Pittsburgh Sleep Quality Index (PSQI) in patients with fibromyalgia
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DOI：
10.1007/s00296-014-2960-z
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发表时间：
2014-07-01
影响因子：
4
通讯作者：
Martinez-Amat, Antonio
中科院分区：
文献类型：
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作者：
Hita-Contreras, Fidel;Martinez-Lopez, Emilio;Martinez-Amat, Antonio
纤维肌痛（FM）被认为是一种常见的疾病，其特征是广泛的疼痛，并与睡眠障碍和睡眠质量差有关。匹兹堡睡眠问卷指数（PSQI）是测量睡眠质量和睡眠障碍的最推荐工具之一。我们的研究的目的是将问卷翻译成西班牙语，并评估西班牙语版的PSQI的心理测量特性。共有138名女性FM属于FM协会（AFIXA，安达卢西亚，西班牙）完成了这项研究。内部一致性和重测信度进行了分析。对PSQI组分进行因子分析。使用斯皮尔曼等级相关系数与西班牙版纤维肌痛影响问卷（FIQ）和健康调查简表-36（SF-36）评估PSQI的收敛效度。在我们的分析中，西班牙语版的PSQI显示出良好的内部一致性的总得分，与克朗巴赫的α为0.805，和一个可接受的重测信度，与斯皮尔曼的相关系数为0.773（p < 0.001），总得分。探索性因素分析产生的两个因素的结构，与克朗巴赫的α因子1为0.866和因子2为0.712。在聚合效度分析中，PSQI总分与FIQ总分和SF-36的心身健康总分呈显著相关（p < 0.01）。我们的研究结果表明，西班牙语版的PSQI提供了一个可靠的工具，具有良好的收敛效度测量西班牙FM患者的睡眠质量。
Fibromyalgia (FM) is recognized as a common condition, characterized by widespread pain and associated with sleep disturbances and poor-quality sleep. The Pittsburgh Sleep Questionnaire Index (PSQI) is one of the most recommended instruments to measure sleep quality and sleep disorders. The purpose of our study was to translate the questionnaire into Spanish and to assess the psychometric properties of the Spanish version of the PSQI. A total of 138 women with FM belonging to a FM association (AFIXA, Andalusia, Spain) completed the study. Internal consistency and test-retest reliability were analyzed. Factorial analysis was performed for the PSQI components. Convergent validity of the PSQI was evaluated using Spearman's rank correlation coefficient with the Spanish versions of the Fibromyalgia Impact Questionnaire (FIQ) and the health survey short form-36 (SF-36). In our analysis, the Spanish version of the PSQI has shown a good internal consistency of the total score, with a Cronbach's alpha of 0.805, and an acceptable test-retest reliability, with a Spearman's correlation coefficient of 0.773 (p < 0.001), for the total score. A two-factor structure was generated by exploratory factor analysis, with a Cronbach's alpha of 0.866 for factor 1 and of 0.712 for factor 2. In convergent validity analysis, the PSQI total score showed a significant correlation (p < 0.01) with the FIQ total score and with the mental and physical health summaries scores of the SF-36. Our results show that the Spanish version of the PSQI provides a reliable instrument, with a good convergent validity for measuring sleep quality among Spanish FM patients.