Table 2.
Scores of the three BMI groups
| All | Normal weight (BMI < 25 kg/m2) | Overweight (25 < BMI < 30 kg/m2) | Obesity (BMI > 30 kg/m2) | P | |
|---|---|---|---|---|---|
| n | 101 | 39 | 42 | 20 | |
| Pre-OKS | 19.8 ± 3.4 | 20.6 ± 3.5 | 20.0 ± 3.3 | 17.8 ± 2.3 | 0.013 |
| Post-OKS | 41.7 ± 3.8 | 41.4 ± 4.4 | 42.0 ± 3.8 | 41.8 ± 2.5 | NS |
| Delta from pre | 21.9 ± 4.7 | 20.7 ± 4.9 | 22.0 ± 4.6 | 24.1 ± 4.0 | 0.057 |
| Pre-WOMAC-Stiffness | 35.0 ± 6.3 | 37.7 ± 5.8 | 35.3 ± 5.9 | 29.0 ± 3.3 | < 0.001 |
| Post-WOMAC-Stiffness | 79.5 ± 7.8 | 80.0 ± 9.6 | 79.6 ± 7.1 | 78.4 ± 5.4 | NS |
| > 89 | 7 (6.9%) | 4 (10.2%) | 2 (4.8%) | 1 (5.0%) | NS |
| Delta from pre | 44.5 ± 9.9 | 42.3 ± 11.2 | 44.3 ± 9.4 | 49.4 ± 6.3 | 0.009 |
| Pre-WOMAC Pain | 36.2 ± 5.8 | 36.8 ± 5.6 | 38.1 ± 4.7 | 31.2 ± 5.5 | < 0.001 |
| Post-WOMAC Pain | 80.0 ± 8.6 | 79.8 ± 10.5 | 80.9 ± 8.4 | 78.2 ± 3.7 | NS |
| > 88 | 20 (19.8%) | 10 (25.6%) | 10 (23.8%) | 0 | 0.026 |
| Delta from pre | 43.710.3 | 43.1 ± 13.1 | 42.8 ± 8.5 | 46.9 ± 7.0 | NS |
| Pre-WOMAC QoL | 35.4 ± 5.9 | 35.7 ± 5.7 | 37.7 ± 5.5 | 30.2 ± 3.8 | < 0.001 |
| Post-WOMAC QoL | 81.3 ± 8.7 | 79.4 ± 10.6 | 82.0 ± 8.0 | 83.6 ± 4.5 | NS |
| > 82 | 62 (61.4%) | 18 (46.1%) | 29 (69.0%) | 15 (75.0%) | 0.040 |
| Delta from pre | 45.9 ± 10.1 | 43.8 ± 11.8 | 44.3 ± 8.8 | 53.3 ± 4.7 | < 0.001 |
| Pre-WOMAC | 35.7 ± 4.9 | 36.4 ± 4.6 | 37.4 ± 4.3 | 30.7 ± 3.6 | < 0.001 |
| Post-WOMAC | 81.0 ± 7.2 | 80.6 ± 8.4 | 81.2 ± 7.4 | 81.3 ± 3.2 | NS |
| > 85 | 25 (24.7%) | 12 (30.8%) | 11 (26.2%) | 2 (10.0%) | NS |
| Delta from pre | 45.3 ± 8.5 | 44.2 ± 10.1 | 43.9 ± 7.5 | 50.7 ± 8.5 | < 0.001 |