Multivariate analysis of the association of disability categories of the WHO-ICF core set for rheumatic and musculoskeletal diseases (RMDs) and RMDs.

Data are odds ratios (95% confidence intervals) controlling for age, sex, number of RMDs, number of co-morbidities, and educational attainment. Reference categories are: no osteoarthritis for osteoarthritis, no low back pain for low back pain, no neck pain for neck pain, no inflammatory arthritis for inflammatory arthritis, no spine deformity for spine deformity, no osteoporosis for osteoporosis, and at least 1 RMD for no RMD. aReference category = no limitation in activities, bReference category = no restriction of participations, cReference category = no help, no discrimination, no need of resource.*p