Predictors for response to rehabilitation in patients with hip or knee osteoarthritis: a comparison of logistic regression models...

Weigl M, Angst F, Aeschlimann A, Lehmann S, Stucki G.
Predictors for response to rehabilitation in patients with hip or knee osteoarthritis: a comparison of logistic regression models with three different definitions of responder.
Osteoarthritis Cartilage. 2006;14:641-651.