Validação da versão brasileira do world health organization disability assessment schedule (WHODAS 2.0) em indivíduos com DPOC

Abstract

COPD (Pulmonary Obstructive Pulmonary Disease) fits into the functionally disabling health condition profile. The WHODAS 2.0 distinguishes itself for addressing human functioning based on the ICF theoretical-conceptual framework, however, it has not yet been validated for individuals with this health condition. The study aims to validate a 36-item Brazilian version of WHODAS 2.0 for individuals with COPD. The sample was 100 individuals. For data collection were applied the WHODAS 2.0, the Saint George's Respiratory Questionnaire (SGRQ) and COPD Assessment Test (CAT). Spirometric measurements and additional data were collected from the medical record. The coefficients for all WHODAS 2.0 domains reported a strong correlation (values between 0.70 and 0.85), except for the Life Activity domain which had a moderate correlation (coefficient = 0.60). The coefficients for WHODAS and SGRQ domains showed a consistent correlation with each other, mostly ranging from 0.40 to 0.69, attesting to an adequate correlation. A discriminant analysis showed WHODAS 'ability to differentiate between different levels of clinical impact of COPD (p <0.05), except for the Interpersonal Relations domain (p> 0.05). The results of this study show that WHODAS 2.0 is a valid, reliable and sensitive instrument to changes in functioning related to the classification of the clinical impact in individuals with COPD.