Functional disability scales for back pain.
Functional disability scales for back pain are reviewed for content and measurement properties, concentrating on five widely used questionnaires. Current methodological issues in functional assessment also are discussed.
Kopec
J A
JA
Department of Epidemiology and Biostatistics, McGill University, Montreal, Canada.
Esdaile
J M
JM
D004185:Disability Evaluation; D006801:Humans; D017116:Low Back Pain / Q000175:diagnosis* / Q000628:therapy; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires