title: Validity of a short-term quality of life questionnaire in patients undergoing joint replacement: the Quality of Recovery-40.
abstract: One hundred thirty-two patients undergoing total hip or knee arthroplasty were evaluated before and after surgery with the Quality of Recovery-40 (QoR-40) and the Short Form 12 (SF-12) questionnaires seven times over a 4-month period, with the objective of comparing their psychometric properties. Physical dimensions of the QoR-40 and SF-12 were not related in the days after surgery but moderately related over the first month. Only the change in score for the physical independence dimension of the QoR-40 exceeded measurement error. Effect sizes were larger for the QoR-40 within the first month post-surgery and larger for the SF-12 past 1 month. Effect sizes were larger for the physical dimensions of both instruments compared to the psychological dimensions. Only the physical independence dimension of the QoR-40 appears useful to assess the quality of life in the first month following surgery.
authors.affiliation: School of Rehabilitation, University of Ottawa, Ottawa, Canada.
authors.forename: Stephane
authors.initials: S
authors.lastname: Poitras
authors.forename: Paul E
authors.initials: PE
authors.lastname: Beaule
authors.forename: Geoffrey F
authors.initials: GF
authors.lastname: Dervin
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019644:Arthroplasty, Replacement, Hip; D019645:Arthroplasty, Replacement, Knee; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011594:Psychometrics; D011788:Quality of Life; D020127:Recovery of Function; D011795:Surveys and Questionnaires