Validity, reliability and responsiveness of the Work Productivity and Activity Impairment Questionnaire in ankylosing spondylitis

Objective. To determine the validity, reliability and responsiveness of the Work Productivity and Activity Impairment questionnaire in AS (WPAI:SpA). Methods. Baseline and Week-24 data from a randomized, double-blind study of adalimumab in patients with AS were used. Discriminative validity of WPAI:...

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Veröffentlicht in:Rheumatology (Oxford, England) England), 2010-04, Vol.49 (4), p.812-819
Hauptverfasser: Reilly, Margaret C., Gooch, Katherine L., Wong, Robert L., Kupper, Hartmut, van der Heijde, Désirée
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Sprache:eng
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