Schiehser Dawn M, Delano-Wood Lisa, Jak Amy J, Matthews Scott C, Simmons Alan N, Jacobson Mark W, Filoteo J Vincent, Bondi Mark W, Orff Henry J, Liu Lin
Veterans Affairs San Diego Healthcare System (VASDHS), San Diego, California (Drs Schiehser, Delano-Wood, Jak, Matthews, Jacobson, Filoteo, Bondi, and Liu); Departments of Psychiatry (Drs Schiehser, Delano-Wood, Jak, Matthews, Simmons, Jacobson, Filoteo, Bondi, and Orff) and Family and Preventive Medicine (Dr Liu), School of Medicine, University of California San Diego, La Jolla; and Center of Excellence for Stress and Mental Health, VASDHS, San Diego, California (Dr Delano-Wood, Matthews, Simmons, Bondi, and Orff).
J Head Trauma Rehabil. 2015 Mar-Apr;30(2):116-21. doi: 10.1097/HTR.0000000000000019.
To evaluate the validity of the Modified Fatigue Impact Scale (MFIS) in veterans with a history of mild to moderate traumatic brain injury (TBI).
Veterans (N = 106) with mild (92%) or moderate (8%) TBI.
Veterans Administration Health System.
Factor structure, internal consistency, convergent validity, sensitivity, and specificity of the MFIS were examined.
Principal component analysis identified 2 viable MFIS factors: a Cognitive subscale and a Physical/Activities subscale. Item analysis revealed high internal consistency of the MFIS Total scale and subscale items. Strong convergent validity of the MFIS scales was established with 2 Beck Depression Inventory II fatigue items. Receiver operating characteristic curve analysis revealed good to excellent accuracy of the MFIS in classifying fatigued versus nonfatigued individuals.
The MFIS is a valid multidimensional measure that can be used to evaluate the impact of fatigue on cognitive and physical functioning in individuals with mild to moderate TBI. The psychometric properties of the MFIS make it useful for evaluating fatigue and provide the potential for improving research on fatigue in this population.
评估改良疲劳影响量表（MFIS）在有轻度至中度创伤性脑损伤（TBI）病史的退伍军人中的有效性。
有轻度（92%）或中度（8%）TBI的退伍军人（N = 106）。
退伍军人管理局医疗系统。
检查MFIS的因子结构、内部一致性、收敛效度、敏感性和特异性。
主成分分析确定了2个可行的MFIS因子：一个认知子量表和一个身体/活动子量表。项目分析显示MFIS总量表和子量表项目具有较高的内部一致性。MFIS量表与2个贝克抑郁量表II疲劳项目建立了很强的收敛效度。受试者工作特征曲线分析显示，MFIS在区分疲劳个体与非疲劳个体方面具有良好到极好的准确性。
MFIS是一种有效的多维测量工具，可用于评估疲劳对轻度至中度TBI个体认知和身体功能的影响。MFIS的心理测量特性使其可用于评估疲劳，并为改善该人群的疲劳研究提供了潜力。
