Western Ontario and McMaster Universities Osteoarthritis Index.
WOMAC
- What it measures
- Osteoarthritis symptom burden in the hip and knee: pain, stiffness, and physical function.
- Length and format
- 24 (5 pain, 2 stiffness, 17 function). 5-pt Likert or 100mm visual analogue, depending on version (self-report questionnaire)
- Language versions
- ~90 language versions, one of the most widely adapted condition-specific measures in existence
- Normative data
- No normative data held in our reference library for this instrument. That is a statement about our library, not about the published literature.
- Licence
- copyrighted - commercial
This instrument is not self-serve. Obtaining it means going to the publisher or the author. We hold no direct link for it; the reference below is the citation to search from.
Licence classification is a research judgement by the catalogue’s authors, not legal advice, and it can be out of date. Confirm terms with the copyright holder or publisher before using an instrument, especially for commercial use.
- Reference
- Bellamy, N., Buchanan, W. W., Goldsmith, C. H., Campbell, J., & Stitt, L. W. (1988). Validation study of WOMAC. Journal of Rheumatology, 15(12), 1833-1840.
Choosing between this and the alternatives
We do not deliver this instrument. If you are selecting a measure for a research programme, a national survey or an assessment product, and the question is which instrument, in which language, against which norms and under which licence, that is the work we do.
Talk to us about instrument selection