Reliability and validity of the Persian version of the Fatigue Scale for Motor and Cognitive Functions (P-FSMC) in Iranian people with multiple sclerosis.

IF 2.1 4区医学 Q1 REHABILITATION

Disability and Rehabilitation Pub Date : 2025-03-06 DOI:10.1080/09638288.2025.2466716

Marzeih Heidari, Ghorban Taghizadeh, Seyed Massood Nabavi, Iris-Katharina Penner, Laleh Lajevardi, Malahat Akbarfahimi

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引用次数: 0

Abstract

Purpose: This study evaluated the psychometric feature of the Persian version of the Fatigue Scale for Motor and Cognitive Functions (P-FSMC) in Iranian People with Multiple Sclerosis (PwMS).

Materials and methods: In this cross-sectional study, 303 PwMS and 102 healthy controls participated. Structural validity was explored using exploratory factor analysis (EFA) and confirmatory factor analysis (CFA). Construct validity was determined through correlations of P-FSMC with the Fatigue Severity Scale (FSS) and the Fatigue Impact Scale (FIS), besides expected differences in P-FSMC scores and by examining score variations based on disability and depression levels. Fatigue discrimination and diagnostic accuracy between PwMS and healthy controls were evaluated.

Results: The P-FSMC demonstrated excellent test-retest reliability and high internal consistency. EFA revealed two factors explaining 70.08% of the variance, with good fit model. The P-FSMC showed moderate to high correlations with FSS and FIS and distinguished different levels of disability and depression. The total score discriminated fatigue with 86.7% accuracy, 84.5% sensitivity, and 93.1% specificity. Cut-off scores for mild, moderate, and severe fatigue severity were ≥46, ≥56, and ≥66, respectively, with high sensitivity (81.52-91.42%) and specificity (80.02-99.01%).

Conclusions: The P-FSMC is a reliable and valid questionnaire for assessing fatigue in Iranian PwMS.

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波斯语版运动和认知功能疲劳量表（P-FSMC）在伊朗多发性硬化症患者中的信度和效度

目的：本研究评估伊朗多发性硬化症（PwMS）患者波斯语版运动与认知功能疲劳量表（P-FSMC）的心理测量特征。材料与方法：本横断面研究共纳入303名PwMS和102名健康对照。采用探索性因子分析（EFA）和验证性因子分析（CFA）探讨结构效度。结构效度是通过P-FSMC与疲劳严重性量表（FSS）和疲劳影响量表（FIS）的相关性来确定的，除了P-FSMC得分的预期差异之外，还通过检查基于残疾和抑郁水平的得分变化来确定。评估PwMS与健康对照的疲劳鉴别和诊断准确性。结果：P-FSMC具有良好的重测信度和较高的内部一致性。EFA显示两个因素解释了70.08%的方差，具有良好的拟合模型。P-FSMC与FSS和FIS呈中高相关，并能区分不同程度的残疾和抑郁。总评分区分疲劳的准确率为86.7%，敏感性为84.5%，特异性为93.1%。轻度、中度和重度疲劳程度的截止评分分别为≥46、≥56和≥66，具有高灵敏度（81.52-91.42%）和特异性（80.02-99.01%）。结论：P-FSMC是一份可靠、有效的评估伊朗PwMS疲劳程度的问卷。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Disability and Rehabilitation 医学-康复医学

CiteScore

5.00

自引率

9.10%

发文量

415

审稿时长

3-6 weeks

期刊介绍： Disability and Rehabilitation along with Disability and Rehabilitation: Assistive Technology are international multidisciplinary journals which seek to encourage a better understanding of all aspects of disability and to promote rehabilitation science, practice and policy aspects of the rehabilitation process.