Alsubiheen Abdulrahman M, Alzain Nawaf A, Albishi Alaa M, Shaheen Afaf A M, Aldaihan Mishal M, Almurdi Muneera M, Alqahtani Abdulfattah S, Alderaa Asma A, Alnahdi Ali H
Department of Health Rehabilitation Sciences, College of Applied Medical Sciences, King Saud University, P.O. Box 10219, Riyadh 11433, Saudi Arabia.
Department of Rehabilitation, King Khalid University Hospital, King Saud University, Riyadh 11461, Saudi Arabia.
Healthcare (Basel). 2023 May 26;11(11):1560. doi: 10.3390/healthcare11111560.
: The aim of this study was to assess the reliability and validity of the Arabic version of the patient-specific functional scale (PSFS-Ar) in patients with multiple sclerosis (MS) disorder. : Reliability and validity were examined in patients with multiple sclerosis using a longitudinal cohort study design. One hundred (N = 100) patients with MS were recruited to examine the PSFS-Ar, test-retest reliability (using the interclass correlation coefficient model 2,1 (ICC)), construct validity (using the hypothesis testing method), and floor-ceiling effect. : A total of 100 participants completed the PSFS-Ar (34% male, 66% female). The PSFS-Ar showed an excellent test-retest reliability score (ICC = 0.87; 95% confidence interval, 0.75-0.93). The SEM of the PSFS-Ar was 0.80, while the MDC was 1.87, indicating an acceptable measurement error. The construct validity of the PSFS-Ar was 100% correlated with the predefined hypotheses. As hypothesized, the correlation analysis revealed positive correlations between the PSFS-Ar and the RAND-36 domains of physical functioning (0.5), role limitations due to physical health problems (0.37), energy/fatigue (0.35), and emotional well-being (0.19). There was no floor or ceiling effect in this study. : The study results showed that the PSFS-Ar is a self-reported outcome measure that is useful for detecting specific functional difficulties in patients with multiple sclerosis. Patients are able to express and report a variety of functional limitations easily and effectively, as well as to measure their response to physical therapy. The PSFS-Ar is, therefore, recommended for use in Arabic-speaking countries for clinical practice and research for patients with multiple sclerosis.
本研究的目的是评估患者特异性功能量表阿拉伯语版（PSFS-Ar）在多发性硬化症（MS）患者中的信度和效度。采用纵向队列研究设计对多发性硬化症患者的信度和效度进行检验。招募了100名（N = 100）MS患者来检验PSFS-Ar、重测信度（使用组内相关系数模型2,1（ICC））、结构效度（使用假设检验方法）以及地板效应和天花板效应。共有100名参与者完成了PSFS-Ar（男性占34%，女性占66%）。PSFS-Ar显示出优异的重测信度得分（ICC = 0.87；95%置信区间，0.75 - 0.93）。PSFS-Ar的标准误为0.80，而最小可检测变化值为1.87，表明测量误差可接受。PSFS-Ar的结构效度与预定义假设的相关性为100%。正如所假设的，相关分析显示PSFS-Ar与RAND-36身体功能领域（0.5）、由于身体健康问题导致的角色限制（0.37）、精力/疲劳（0.35）以及情绪健康（0.19）之间存在正相关。本研究中不存在地板效应或天花板效应。研究结果表明，PSFS-Ar是一种自我报告的结局指标，可用于检测多发性硬化症患者的特定功能困难。患者能够轻松有效地表达和报告各种功能限制，以及测量他们对物理治疗的反应。因此，推荐在讲阿拉伯语的国家将PSFS-Ar用于多发性硬化症患者的临床实践和研究。
