Validation of the Brazilian version of WHODAS 2.0 for individuals with temporomandibular disorders

Abstract

This study aims to validate the Brazilian version of World Health Organization Disability Assessment Schedule (WHODAS 2.0) for individuals with temporomandibular disorders (TMD), assessing its psychometric properties, including internal consistency, construct validity, and discriminant validity. In total, 100 female and male patients with TMD were included. Participants were assessed based on the Research Diagnostic Criteria for TMD (RDC/TMD). For statistical analyses, McDonald’s omega coefficient was used to assess internal consistency; Spearman correlation, for construct validity; Kruskal-Wallis test and multiple comparisons (Dunn method), for discriminant validity. The results of internal consistency for the WHODAS 2.0 domains ranged from 0.70 to 0.94. The WHODAS 2.0 showed a moderate and significant correlation with the disability points of the RDC/TMD and with the WHOQOL-BREF domains. In the discriminant validity, significant differences were found in all domains of WHODAS 2.0 between grade 0 and grade III, between grade I and grade III, and between grade II and grade III from the chronic pain grading of the RDC/TMD. The results demonstrate that the instrument is reliable and valid for measuring the functioning of individuals with TMD, presenting acceptable psychometric properties for internal consistency, as well as for construct validity and discriminant validity.

Avaliação da incapacidade de indivíduos com diabetes mellitus: um estudo transversal com o WHODAS 2.0

“…Para medir a funcionalidade e incapacidade, a Organização Mundial da Saúde (OMS) desenvolveu, a partir de itens da CIF 15 , o World Health Organization Disability Assessment Schedule versão 2.0 (WHODAS 2.0) para mensurar a incapacidade de modo transcultural. Este instrumento já foi validado para indivíduos com HIV/Aids 16 , idosos institucionalizados 17 e pacientes com DM 18 , cegueira 19 e disfunção temporomandibular 20 .…”

Disability assessment of individuals with diabetes mellitus: a cross-sectional study with the WHODAS 2.0

“…To measure functioning and disability, the World Health Organization (WHO) developed, based on ICF items 15 , the World Health Organization Disability Assessment Schedule version 2.0 (WHODAS 2.0) to measure disability in a cross-cultural way. This tool has already been validated for individuals with HIV/AIDS 16 , institutionalized older adults 17 , and individuals with DM 18 , blindness 19 , and temporomandibular disorder 20 .…”