Validation of the Brazilian version of the World Health Organization Disability Assessment Schedule in women with chronic pelvic pain

Abstract

BACKGROUND AND OBJECTIVES: Chronic pelvic pain (CPP) is a persistent pain perceived in structures related to the pelvis. It is often associated with negative functioning consequences that generate disability. There are currently no validated tools in the literature for measuring functioning according to the theoretical-conceptual model presented by the International Classification of Functioning, Disability and Health (ICF) for patients with CPP. The objective of this study was to test the measurement properties of the World Health Organization Disability Assessment Schedule (WHODAS 2.0) for women with CPP. METHODS: This is a validation study. The auxiliary instruments used in the validation process of the WHODAS 2.0 were: the 12-item Short-Form Health Survey (SF-12), the Numerical Pain Rating Scale, and a form with sociodemographic and clinical data. Internal consistency was analyzed using Cronbach's alpha coefficient, construct validity was assessed using Spearman's correlation coefficient, discriminative validity was analyzed using the analysis of variance, and test-retest reliability was analyzed using the Intra-class Correlation Coefficient (ICC).