Department of Physiology, AIIMS, Bhopal, Madhya Pradesh, India.
Department of Neurology, AIIMS, Bhopal, Madhya Pradesh, India.
Neurol India. 2023 Sep-Oct;71(5):964-972. doi: 10.4103/0028-3886.388103.
Parkinson's disease sleep scale-2 (PDSS-2) is a reliable sleep assessment tool which has been validated in several languages. As sleep problems have a great impact on the quality of life of Parkinson's disease patients, we aimed to translate and validate PDSS-2 in Hindi for its wider use among Hindi-speaking Indian patients. Our study objective was to translate PDSS-2 in Hindi (H-PDSS-2) and to assess the psychometric properties of H-PDSS-2 questionnaire for its use in Hindi-speaking Indian PD patients. Secondly, we aimed to compare the results with those of the other language PDSS-2 validation studies.
This study was done in two phases, enrolling 16 patients and 16 controls in the first/translation phase for assessment of internal consistency and discriminative power of PDSS-2. The test-retest reliability was determined in the second phase on 35 Parkinson's disease patients who were followed-up at an interval of 7-10 days.
No difficulties were faced by the patients and controls in the first phase, and internal consistency of the scale was good (Cronbach's alpha = 0.804). There was no significant difference in total H-PDSS-2 score at baseline 16.86 ± 10.59 and on retest 16.40 ± 9.54, suggesting good reliability. Intraclass correlation coefficients ranged from 0.710 to 0.901, and precision was 2.82 over the period of 7-10 days. Subdomains of H-PDSS-2 had moderate/high internal validity, and they showed significant correlation with Unified PD Rating Scale (UPDRS) and HY disease scale.
H-PDSS-2 is equivalent to the original PDSS-2 for tested psychometric attributes. Its use among Indian Parkinson's disease patients will help in the comprehensive assessment of sleep problems among PD patients.
帕金森病睡眠量表-2（PDSS-2）是一种可靠的睡眠评估工具，已在多种语言中得到验证。由于睡眠问题对帕金森病患者的生活质量有很大影响，我们旨在将 PDSS-2 翻译并验证为印地语，以便在讲印地语的印度患者中更广泛地使用。我们的研究目的是将 PDSS-2 翻译为印地语（H-PDSS-2），并评估 H-PDSS-2 问卷的心理测量特性，以便在讲印地语的印度帕金森病患者中使用。其次，我们旨在将结果与其他语言 PDSS-2 验证研究的结果进行比较。
这项研究分两个阶段进行，第一阶段/翻译阶段招募了 16 名患者和 16 名对照者，以评估 PDSS-2 的内部一致性和区分能力。第二阶段在 35 名帕金森病患者中进行了测试-重测可靠性，这些患者在 7-10 天的间隔内进行了随访。
患者和对照者在第一阶段均未遇到困难，量表的内部一致性良好（Cronbach's alpha = 0.804）。基线时 H-PDSS-2 总分无显著差异（16.86 ± 10.59），重测时（16.40 ± 9.54）也无显著差异，提示可靠性良好。组内相关系数范围为 0.710 至 0.901，在 7-10 天期间的精密度为 2.82。H-PDSS-2 的子域具有中等/高度内部有效性，与统一帕金森病评定量表（UPDRS）和 HY 疾病量表显著相关。
H-PDSS-2 在测试的心理测量属性方面与原始 PDSS-2 相当。在印度帕金森病患者中使用它将有助于全面评估 PD 患者的睡眠问题。
