A comparative study of telephone versus onsite completion of the WOMAC 3.0 Osteoarthritis Index

Bellamy, N, Campbell, J, Hill, J and Band, P (2002) A comparative study of telephone versus onsite completion of the WOMAC 3.0 Osteoarthritis Index. Journal of Rheumatology, 29 4: 783-786.

Author Bellamy, N
Campbell, J
Hill, J
Band, P
Title A comparative study of telephone versus onsite completion of the WOMAC 3.0 Osteoarthritis Index
Journal name Journal of Rheumatology   Check publisher's open access policy
ISSN 0315-162X
Publication date 2002
Sub-type Article (original research)
Volume 29
Issue 4
Start page 783
End page 786
Total pages 4
Editor D. A. Gordon
R. D. Inman et al.
Place of publication Toronto
Publisher Journal of Rheumatology Publishing Co
Collection year 2002
Language eng
Subject C1
321028 Rheumatology and Arthritis
730306 Evaluation of health outcomes
Abstract Objective. Outcome assessment in clinical trials using the Western Ontario and McMaster University (WOMAC 3.0) Osteoarthritis Index is traditionally achieved through self-administration of the Index. However, in other areas of clinical measurement, telephone administration has been shown to be a reliable method of acquiring data that are both accurate and complete. To address this issue in knee osteoarthritis (OA), we conducted a comparative study of telephone administration by interviewer of WOMAC LK3.0 versus onsite self-completion at the hospital. Methods. Fifty consenting patients with knee OA were randomized to complete the WOMAC LK3.0 Index by telephone interview one day, followed by onsite completion the following day, or vice versa. Neither patients nor interviewers had access to any prior scores. Results. The mean age of the 50 patients was 66.3 years (range 44-82); 34 (68%) were female and 16 (32%) male. There was excellent agreement between the mean office and telephone scores, with mean differences for the WOMAC LK3.0 pain, stiffness, and function subscale scores and total score of 0.09, 0.12, 0.78, and 0.98, respectively. These differences were well within the respective protocol defined equivalence criteria of +/- 1.7, +/- 0.9, +/- 6.4, and +/- 9.1, and represented differences from office scores of 0.9, 2.6, 2.4, and 2.2%, respectively. Conclusion. The use of telephone interviews for the WOMAC LK3.0 Index is a valid method of obtaining OA outcome measurements. These observations have important implications for designing data acquisition strategies for future OA clinical trials and for longterm observational studies.
Keyword Rheumatology
Outcome Assessment
Antirheumatic Drug Trials
Q-Index Code C1

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
School of Medicine Publications
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 43 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 0 times in Scopus Article
Google Scholar Search Google Scholar
Created: Tue, 14 Aug 2007, 17:49:49 EST