• Arch Phys Med Rehabil · Aug 2014

    Psychometric properties of the Brief Fatigue Inventory in community-dwelling older adults.

    • Melissa J Shuman-Paretsky, Janna Belser-Ehrlich, and Roee Holtzer.
    • Ferkauf Graduate School of Psychology, Yeshiva University, Bronx, NY.
    • Arch Phys Med Rehabil. 2014 Aug 1; 95 (8): 1533-9.

    ObjectiveTo investigate the psychometric properties of the Brief Fatigue Inventory (BFI) in community-dwelling older adults.DesignCross-sectional validation study.SettingCommunity based.ParticipantsSubjects (N=302) were nondemented older adults (mean age, 76.44 y; 54% women).InterventionsNot applicable.Main Outcome MeasuresBFI total, severity, and interference summation scores.ResultsA principal component analysis (PCA) yielded 2 factors, fatigue severity and interference, explaining 65.94% of the variance. Both factors had good reliability, with Cronbach alpha values of .867 for fatigue interference and .818 for fatigue severity. Higher fatigue scores were associated with older age and worse physical and cognitive functions.ConclusionsFatigue is a common and debilitating symptom in the aging population. The current study provides novel findings in validating and establishing a bidimensional factor structure for the BFI in older adults. Severity and interference were differentially related to important health outcomes; therefore, using these subscales in addition to the total BFI score is recommended with older adults. Because of its relatively short administration time and established psychometric properties, the BFI can be successfully incorporated into longitudinal studies and clinical trials.Copyright © 2014 American Congress of Rehabilitation Medicine. Published by Elsevier Inc. All rights reserved.

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