Validity and Responsiveness of the Manchester Fatigue Scale in Post-COVID
DOI:
https://doi.org/10.5585/23.2024.26134Keywords:
Fatigue, Post-Acute COVID-19 Syndrome, Symptom AssessmentAbstract
Objective: This study investigates the Manchester COPD Fatigue Scale's (MCFS) validity and responsiveness in individuals after hospitalization due to COVID-19.
Methods: A longitudinal observational study included 53 adults diagnosed with COVID-19. Modified Medical Research Council dyspnea scale (mMRC), Six-Minute Step Test (6MST), Saint George's Respiratory Questionnaire (SGRQ), and Hospital Anxiety and Depression Scale (HADS) were assessed. The measurement properties tested were concurrent, convergent, discriminant validities, and responsiveness.
Results: The MCFS showed concurrent, convergent, and discriminant validity, with moderate to strong significant correlations with fatigue (rs=0.57), symptoms (rs=-0.27), exercise performance (rs=0.39), depression (rs=0.67), and dyspnea (rs=0.44) measures. The instrument exhibited internal responsiveness with reduced fatigue scores three months after hospital discharge (median total score from 14.5 to 5.0,p<0.001). External responsiveness was shown through associations between MCFS scores and dyspnea changes.
Conclusion: The MCFS is a valid and responsive tool for physicians and researchers in effectively identifying, monitoring, and managing post-COVID-19 fatigue.
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Copyright (c) 2024 Mara Galdino Müller, Caroline Valle Americano, Carlos Alberto Mourão Júnior , Cyntia Pace Schmitz Corrêa, Felipe Meirelles de Azevedo; Rafaella Polato; Leandro Ferracini Cabral , Cristino Carneiro Oliveira , Anderson José , Carla malaguti
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