title: The relationship between impairment and disability in arthritis: an application of the theory of generalized linear models to the ICIDH.
abstract: We investigated the relationship between impairment, as represented by limitation in range of movement and pain in the knee joint, and disability as measured by a series of activities of daily living in 123 patients with either rheumatoid arthritis or osteoarthrosis. A log-linear modelling technique found there was a positive association between functional limitation, as measured by reduction in angle of flexion, and disability. However, there was only a marginal relationship between pain in the knee joint and disability, and no association between pain and range of movement, which suggests that conventional beliefs that pain is a key factor in assessing health outcomes may need to be reassessed.
authors.affiliation: Arthritis and Rheumatism Council Epidemiology Research Unit, University of Manchester Medical School, U.K.
authors.forename: A S
authors.initials: AS
authors.lastname: Rigby
authors.forename: S M
authors.initials: SM
authors.lastname: Rudolfer
authors.forename: E M
authors.initials: EM
authors.lastname: Badley
authors.forename: N C
authors.initials: NC
authors.lastname: Brayshaw
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001172:Arthritis, Rheumatoid / Q000503:physiopathology*; D004185:Disability Evaluation; D005260:Female; D006801:Humans; D007719:Knee Joint / Q000503:physiopathology; D016014:Linear Models; D008297:Male; D008875:Middle Aged; D009068:Movement; D010003:Osteoarthritis / Q000503:physiopathology*; D010146:Pain / Q000523:psychology