Estimates of meaningful within-patient change by WOMAC domain and study as percentage change.
| WOMAC Domain | Study | |||||
|---|---|---|---|---|---|---|
| 1 | 2 | 3 | ||||
| 1-category Change in PGA-OA | 2-category Change in PGA-OA | 1-category Change in PGA-OA | 2-category Change in PGA-OA | 1-category Change in PGA-OA | 2-category Chan in PGA-OA | |
| Pain | 15.51 (14.69–16.34) | 31.02 (29.38–32.67) | 13.51 (12.74–14.28) | 27.02 (25.48–28.56) | 15.93 (15.54–16.32) | 31.85 (31.07–32.63) |
| Physical Function | 15.31 (14.51–16.10) | 30.61 (29.02–32.21) | 12.50 (11.81–13.20) | 25.01 (23.61–26.41) | 15.63 (15.26–16.01) | 31.27 (30.52–32.01) |
| Stiffness | 15.36 (14.42–16.29) | 30.72 (28.85–32.59) | 13.24 (12.14–14.34) | 26.47 (24.28–28.67) | 16.23 (15.76–16.70) | 32.46 (31.52–33.40) |
| Total | 15.15 (14.37–15.93) | 30.30 (28.74–31.85) | 12.90 (12.19–13.62) | 25.80 (24.37–27.24) | 15.51 (15.14–15.88) | 31.02 (30.29–31.76) |
95% CIs are shown for each value. PGA-OA: patient global assessment of osteoarthritis; WOMAC: Western Ontario and McMaster Universities Osteoarthritis Index.