Association between muscle power impairment and WHODAS 2.0 in older adults with physical disability in Taiwan

Purpose: To explore the association between muscle power impairment and each World Health Organization Disability Assessment Schedule second edition (WHODAS 2.0) domain score among subjects with physical disability. Methods: Subjects (≥60 years) with physical disability related to neurological diseases, including 730 subjects with brain disease (BD) and 126 subjects with non-BD, were enrolled from a data bank of persons with disabilities from 1 July 2011 to 29 February 2012. Standardized WHODAS 2.0 scores ranging from 0 (least difficulty) to 100 (greatest difficulty) points were calculated for each domain. Results: More than 50% of subjects with physical disability had the greatest difficulty in household activities and mobility. Muscle power impairment (adjusted odds ratios range among domains, 2.75-376.42, p