Document Detail

Comparison of paper and computer-based questionnaire modes for measuring health outcomes in patients undergoing total hip arthroplasty.
MedLine Citation:
PMID:  21266642     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: Health status questionnaires are important, especially with the growing interest in outcome studies. However, these questionnaires continue to be administered in their original paper format. We hypothesized that total hip arthroplasty outcome data derived with computer-based questionnaires do not differ significantly from those derived with established paper-based formats.
METHODS: From January 2006 to January 2007, the clinic schedules of four attending arthroplasty surgeons were screened weekly to identify patients who could potentially be included in the study. Charts were reviewed for subjects who were scheduled for or had received primary total hip arthroplasty. Patients were recruited during their office visit or when they attended a preoperative educational class, and five health status questionnaires (the Harris hip score, WOMAC [Western Ontario and McMaster Universities Osteoarthritis Index], SF-36 [Short Form-36], EQ-5D [EuroQol-5D], and UCLA [University of California at Los Angeles] activity score) were administered in three formats: paper, touch screen, and web-based. Repeated-measures analysis of variance and Pearson correlations were used to compare the questionnaire modes for the Harris hip score (normally distributed data), and the Friedman test and Spearman correlations were used to compare the modes for the other health status scores (non-normally distributed data). The study was designed with 90% power for detecting 10% differences between modes in the entire series of sixty-one patients and with 82% and 87% power in preoperative and postoperative subgroups, respectively.
RESULTS: The mean age was sixty-three years, with thirty-seven male and twenty-four female patients in the study. Forty-seven hips (77%) had osteoarthritis as the primary diagnosis. No significant differences were detected, for any of the five health outcome systems, among the paper, touch screen, and web-based modes, and there were highly significant correlations among all questionnaire modes in the entire series of patients and in the preoperative and postoperative subgroups (p < 0.001).
CONCLUSIONS: The scores obtained with the paper, touch screen, and web-based modes of the five questionnaires demonstrated excellent agreement. Thus, touch screen and web-based formats can be used to collect and track patient outcome data. Use of electronic formats of these questionnaires will facilitate a more efficient and reliable data collection process.
Nina Shervin; Janet Dorrwachter; Charles R Bragdon; David Shervin; David Zurakowski; Henrik Malchau
Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  The Journal of bone and joint surgery. American volume     Volume:  93     ISSN:  1535-1386     ISO Abbreviation:  J Bone Joint Surg Am     Publication Date:  2011 Feb 
Date Detail:
Created Date:  2011-01-26     Completed Date:  2011-03-08     Revised Date:  2011-06-08    
Medline Journal Info:
Nlm Unique ID:  0014030     Medline TA:  J Bone Joint Surg Am     Country:  United States    
Other Details:
Languages:  eng     Pagination:  285-93     Citation Subset:  AIM; IM    
Massachusetts General Hospital, Jackson Building 1126, Boston, MA 02114, USA.
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MeSH Terms
Aged, 80 and over
Arthroplasty, Replacement, Hip*
Data Collection / methods
Data Display
Middle Aged
Online Systems
Postoperative Period
Preoperative Period
Retrospective Studies
Treatment Outcome

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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