Responsiveness of the cervical Northern American Spine Society questionnaire (NASS) and the Short Form 36 (SF-36) in chronic whiplash.

Objective: To determine and compare the sensitivity to change of the condition-specific cervical Northern American Spine Society (NASS) and the generic Short Form 36 (SF-36).

Design: Prospective cohort study.

Subjects: One hundred and seventy five patients after whiplash injury.

Interdisciplinary rehabilitation after whiplash injury: an observational prospective outcome study.

Objective: To examine the state of, and change in, biopsycho-social health and quality of life of patients after whiplash injury, before and after an inpatient interdisciplinary pain management programme.

Methods: Observational, prospective cohort study (n = 103) using medical record data and standardized self-assessments to compare health state with general population norms and to determine effects by means of standardized effect sizes. The therapy programme consisted of drug adaptation, graded activity exercise, relaxation therapies, and behavioural therapy.