Difference of the WOMAC scores, SF-12 scores and physical performance between the participants with knee OA or without
| With OA (mean±SD) N=460 | Without OA (mean±SD) N=441 | p Value | |
|---|---|---|---|
| WOMAC | |||
| Pain | 2.60±3.57 | 1.85±2.94 | 0.001 |
| Stiffness | 1.08±1.58 | 0.74±1.39 | 0.001 |
| Physical function | 8.29±11.71 | 5.74±9.57 | 0.001 |
| Total | 11.97±15.79 | 8.23±12.84 | <0.001 |
| SF-12 | |||
| Physical functioning (PF) | 65.54±32.34 | 71.88±30.94 | 0.003 |
| Role-physical (RP) | 62.39±46.43 | 66.10±45.12 | 0.225 |
| Bodily pain (BP) | 86.47±20.30 | 89.43±18.87 | 0.024 |
| General health (GH) | 48.65±29.39 | 51.52±28.73 | 0.139 |
| Vitality (VT) | 63.65±27.39 | 68.39±25.25 | 0.007 |
| Social functioning (SF) | 81.52±23.18 | 83.50±21.42 | 0.183 |
| Role-emotional (RE) | 81.74±37.68 | 86.39±32.28 | 0.046 |
| Mental health (MH) | 78.33±18.80 | 79.52±17.90 | 0.328 |
| SF-12 | |||
| PCS | 65.76±24.67 | 69.73±23.69 | 0.014 |
| MCS | 76.31±19.60 | 79.45±16.66 | 0.010 |
| TUGT (s) | 9.90±3.40 | 9.45±4.50 | 0.090 |
| FTSST (s) | 13.77±5.67 | 13.00±6.42 | 0.060 |
FTSST, Five Times Sit to Stand Test; MCS, mental component summary; PCS, physical component summary; SF-12, Short Form-12;
TUGT, Timed and Up to Go Test; WOMAC, Western Ontario and McMaster index.