Background. Measurement of function usually involves the use of both performance- based and self-report instruments. However, the relationship between both types of measures is not yet completely understood, in particular for older adults attending primary care.
Objective. The main objective of the study was to investigate the association between the World Health Organization Disability Assessment Schedule 2.0 (WHODAS 2.0) and the Short Physical Performance Battery (SPPB) for older adults at primary care. A secondary objective was to determine the influence of sociodemographic and health-related variables on this relationship.
Design. This was a cross-sectional study.