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    The Association Between Physical Performance and Health-Related Quality of Life Based on the EQ-5D-3L Questionnaire in Patients With Chagas Disease
    (Value in Health Regional Issues, 2021) Lins, Wylisson Marcelo Almeida; Tura, Bernardo Rangel; Kasal, Daniel Arhur
    Objectives: Chagas disease (CD) is a chronic disease to millions worldwide, and many patients develop heart disease. In addition, they are part of an aging population. These characteristics can be associated with a reduction in physical performance and health-related quality of life (HRQoL). This study evaluated HRQoL, and the relationship between physical performance and HRQoL in patients with chronic CD. Methods: We used the 3-level version of EuroQol 5-dimensional questionnaire (EQ-5D-3L), with the visual analog scale (VAS). Physical performance was measured with 30-s chair-stand test (30sCST) and timed up and go test (TUGT). Results: Sixty-three patients were evaluated. The majority were women (68.2%) aged 67.7 ± 9.7 years. Overall EQ-5D-3L utility index was 0.65 ± 0.28, and VAS score was 68.4 ± 25.1. Most patients with intermediate and high performance in 30sCST referred no problems in the domains "mobility," "usual activities," and "pain/feeling ill" (P < .001, P = .01, and P = .025, respectively). In a similar way, most patients with intermediate and high performance in TUGT referred no problems in "mobility" (P < .0001) and "usual activities" (P = .001). Higher performance in both tests was associated with higher overall EQ-5D-3L utility and VAS scores. HRQoL measured by EQ-5D-3L was associated with physical status in a cohort of patients with chronic CD. The results underscore the contribution of physical performance, measured by 2 inexpensive and safe physical tests, to HRQoL in these patients. Conclusion: Strategies aiming the improvement of HRQoL in patients with CD may focus on mobility skills and force. Future studies evaluating interventions in physical performance should be a priority in these patients.