Abstract
Purpose To investigate the test-retest reliability and construct validity of the LCADL scale applied via online form in individuals after hospitalization for COVID-19. Methods Methodological study. After hospitalization for COVID-19 individuals completed the LCADL via online form at two separate times. They also answered the post-COVID-19 Functional Status Scale (PCFS), dyspnea, fatigue, and health perception scales, modified Medical Research Council (MRCm), Short Form Health Survey 36 (SF-36). Hospitalization data were collected from the individual’s medical record. Results 104 individuals participated in the study (57 men, 45.2 ± 11.9 years). The LCADL showed moderately to high test-retest reliability (ICC: 0.73–0.86; p < 0.001), there was no difference in scores between test and retest (p > 0.05), the mean difference between the applications was smaller than the standard error of measurement and the internal consistency was adequate (Cronbach’s α = 0.70–0.94). In addition, it demonstrated adequate construct validity, showing correlations with PCFS, dyspnea perception, fatigue and health scales, mMRC, SF-36, and length of stay in the Intensive Care Unit (p < 0.05). The LCADL as percentage of the total score presented a significant floor effect (25%). Conclusion The LCADL applied online was reliable and valid for assessing limitations due to dyspnea in ADL in individuals after hospitalization for COVID-19.
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