Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC)
What it measures:
- The WOMAC is a disease-specific tool used for people with hip or knee OA to measure physical function, pain, and stiffness in the past 48 hours.
- The WOMAC is a self-administered instrument containing 24 items measuring 3 subscales: physical function (17 items), pain (5 items), and stiffness (2 items).
- Scores can be calculated for each subscale and a total score is calculated by adding all 3 subscale scores. Higher points signify higher levels of functional difficulty.
Adults with hip or knee osteoarthritis (OA), although it has also been used in populations with low back pain, rheumatoid arthritis (RA), juvenile RA, systemic lupus erythematosus, fibromyalgia, and post-lower extremity arthroplasty.
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