Japan Somnology Center, Neuropsychiatric Research Institute, Tokyo, Japan.
Sleep Med. 2012 Aug;13(7):913-8. doi: 10.1016/j.sleep.2012.04.011. Epub 2012 Jun 15.
The rapid eye movement (REM) sleep behavior disorder (RBD) questionnaire (RBDQ)-Hong Kong was the first tool developed for quantifying the severity of RBD. This study was conducted to validate the Japanese version of the questionnaire and to investigate its reliability, validity, and responsiveness.
Patients with idiopathic RBD and sex and age-matched healthy controls completed the Japanese version of the questionnaire (RBDQ-JP). In addition to the evaluation of its reliability and validity, the questionnaire scores were compared between those earned before and those earned after pharmaceutical treatment to assess the questionnaire's responsiveness.
The questionnaire demonstrated high test-retest reliability and moderate internal consistency. The best cut-off score was 19/20 with a sensitivity of 97.2% and a specificity of 97.5%. Exploratory factor analysis revealed that the questionnaire consists of the following two factors: Factor 1, Dream and dream-related behaviors and Factor 2, Violent/complex behaviors. Among the patients, significant correlation was found between the rate of change of questionnaire score and the clinical global impression improvement score with pharmaceutical treatment (rs=-0.829, p<0.01).
The RBDQ-JP provides satisfactory reliability, validity, and responsiveness. The questionnaire is suitable for severity assessment and for assessing the RBD treatment outcome.
快速眼动（REM）睡眠行为障碍（RBD）问卷（RBDQ）-香港是第一个用于量化 RBD 严重程度的工具。本研究旨在验证问卷的日文版本，并探讨其信度、效度和反应度。
特发性 RBD 患者和性别及年龄匹配的健康对照者完成了日文版问卷（RBDQ-JP）。除了评估其信度和效度外，还比较了药物治疗前后的问卷得分，以评估问卷的反应度。
问卷表现出较高的重测信度和中等的内部一致性。最佳截断值为 19/20，其敏感性为 97.2%，特异性为 97.5%。探索性因子分析显示，问卷由以下两个因子组成：因子 1，梦境和与梦境相关的行为，因子 2，暴力/复杂行为。在患者中，与药物治疗相关的问卷评分变化率与临床总体印象改善评分之间存在显著相关性（rs=-0.829，p<0.01）。
RBDQ-JP 提供了令人满意的信度、效度和反应度。该问卷适用于严重程度评估和 RBD 治疗效果的评估。
