Koes, B.W.

study patient treatment group outcome score follow-up month trial complaint review result effect intervention difference baseline evidence factor therapy quality signi disability population table questionnaire surgery health practice osteoarthritis injury analysis exercise shoulder spine association scale symptom ficant criteria injection recovery neck pain placebo measure participant signi ficant differences number model control research effectiveness randomized sciatica disorder nsaid disease article netherland syndrome hip oa variable children level risk factors duration women activity carpal tunnel syndrome rotterdam characteristic value measurement outcome measures musculoskeletal examination tunnel ankle assessment prognostic factors grade