Abstract
To validate HAQ-UP-Argentine version in patients with RA. Cross-sectional study. Consecutive patients ≥18years with diagnosis of RA (ACR/EULAR 2010) were included. Socio-demographic data and RA characteristics were recorded. Questionnaires were administered: HAQ-A, HAQ-UP-A, FIHOA, Quick-DASH. The reproducibility of the questionnaire was assessed. A total of 100 patients were included, 83% women, mean age 57.9years (SD 11.6). Cronbach's alpha test was 0.94. The intra-item correlation did not show redundant questions. HAQ-UP-A showed excellent correlation with HAQ-A (r=.93); FIHOA (r=.89) and Quick-DASH (r=.91). It also showed good correlation with DAS28-ESR (r=.68) and other composite disease activity indices as well as with other parameters of the disease. There was no correlation between HAQ-UP-A and disease duration. The reproducibility of the questionnaire was 0.82. Multiple linear regression adjusted for age and sex showed patient global VAS as the main determinant of HAQ-UP-A, followed by the presence of morning stiffness. HAQ-UP-A was found to be reliable, valid and reproducible in patients with RA, representing a useful tool for the evaluation of the functional capacity of the upper limbs in these patients.
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