title: Patients respond similarly to paper and electronic versions of the WOMAC and SF-12 following total joint arthroplasty.
abstract: The purpose of this study was to determine agreement between responses on electronic and paper versions of the WOMAC and SF-12(v2) questionnaires following total hip and total knee arthroplasty. Patients completed both electronic and paper questionnaires with a one week interval in-between. The order in which they completed the two versions was randomly assigned. A total of 53 patients completed the study, with a mean age of 69 years (range 50-90 years). The intraclass correlation coefficients (ICC) were high, indicating excellent agreement (WOMAC ICC = 0.96, 95% CI 0.94-0.98), SF-12 (PCS) ICC = 0.95, 95% CI 0.92-0.97; SF-12 (MCS) ICC = 0.92, 95%CI 0.86-0.95). Online data collection may be substituted for the traditional paper method with no significant effect on the criterion validity of the questionnaires.
authors: Faculty of Health Sciences, The University of Western Ontario, Elborn College, London, Ontario, Canada.
authors: Jacquelyn D
authors: JD
authors: Marsh
authors: Faculty of Health Sciences, The University of Western Ontario, Elborn College, London, Ontario, Canada.
authors: Dianne M
authors: DM
authors: Bryant
authors: Department of Orthopaedic Surgery, London Health Sciences Centre, University Hospital, London, ON, Canada.
authors: Steven J
authors: SJ
authors: Macdonald
authors: Department of Orthopaedic Surgery, London Health Sciences Centre, University Hospital, London, ON, Canada.
authors: Douglas D R
authors: DD
authors: Naudie
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D019645:Arthroplasty, Replacement, Knee; D005260:Female; D006801:Humans; D020407:Internet; D008297:Male; D008875:Middle Aged; D010003:Osteoarthritis / Q000601:surgery*; D017063:Outcome Assessment, Health Care; D057566:Self Report; D011795:Surveys and Questionnaires
keywords: agreement; data collection; electronic; reliability; total hip arthroplasty; total knee arthroplasty