Validation study of a computerized version of the Western Ontario and McMaster Universities VA3.0 Osteoarthritis Index.
OBJECTIVE
To study the validity and feasibility of a computerized version of the Western Ontario and McMaster Universities (WOMAC) Osteoarthritis Index.


METHODS
Thirty patients with osteoarthritis (OA) of the knee completed both a paper and a computerized version of WOMAC in random order. The visual analog scaled version of WOMAC, VA3.0, was used. We studied criterion validity by comparing the paper and computerized versions.


RESULTS
All patients completed the computerized version without undue difficulty. Criterion validity, based on aggregated subscale scores, was excellent: Pain, ICC = 0.89, Stiffness, ICC = 0.87, Physical Function, ICC = 0.95.


CONCLUSIONS
The computerized version of WOMAC VA3.0 is a valid alternative to the paper version.
Bellamy
N
N
Department of Medicine, The University of Western Ontario, London, Canada.
Campbell
J
J
Stevens
J
J
Pilch
L
L
Stewart
C
C
Mahmood
Z
Z
D000368:Aged; D002986:Clinical Trials as Topic; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010003:Osteoarthritis / Q000175:diagnosis*; D017063:Outcome Assessment, Health Care; D010147:Pain Measurement; D015203:Reproducibility of Results; D012720:Severity of Illness Index; D012984:Software / Q000592:standards*; D011795:Surveys and Questionnaires / Q000592:standards*