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. Interventions: Four-...

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Veröffentlicht in:Clinical rehabilitation 2012-02, Vol.26 (2), p.142-151
Hauptverfasser: Angst, Felix, Verra, Martin L, Lehmann, Susanne, Gysi, Françoise, Benz, Thomas, Aeschlimann, André
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Sprache:eng
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Zusammenfassung: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. Interventions: Four-week inpatient interdisciplinary pain management programme. Main measures, analysis: Responsiveness of the NASS and the SF-36 was quantified by effect size and standardized response mean and compared within the same construct by the modified Jacknife test. Ability to detect improvement was compared using sensitivities determined from receiver operating characteristics curves. Results: In pain, the NASS was comparable responsive to the SF-36 at the one-month follow-up (n = 175): effect sizes: 0.62 (NASS) versus 0.61 (SF-36), P = 0.914. The NASS was less responsive than the SF-36 in function: 0.23 versus 0.63, P 
ISSN:0269-2155
1477-0873
DOI:10.1177/0269215511414158