Table 2.
Pain and stiffness outcome between the groups
| KOOS-Pain | KOOS-Stiffness | KSS Knee Score | |||||||
|---|---|---|---|---|---|---|---|---|---|
| PP | Non-PP | p | PP | Non-PP | p | PP | Non-PP | p | |
| 6 weeks | |||||||||
| 68.9 ± 9.7 | 86.5 ± 6.3 | 0.001 | 65.7 ± 17.2 | 95.0 ± 7.2 | 0.001 | 53.1 ± 14.1 | 76.3 ± 9.6 | 0.001 | |
| B (p*) | 15.7 ± 2.2 (0.001) | 24.2 ± 3.3 (0.001) | 11.3 ± 3.3 (0.001) | ||||||
| 6 months | |||||||||
| 66.7 ± 17.2 | 92.7 ± 4.7 | 0.001 | 80.6 ± 11.0 | 99.3 ± 3.0 | 0.001 | 78.1 ± 6.2 | 88.6 ± 3.5 | 0.001 | |
| B (p*) | 23.3 ± 2.2 (0.001) | 23.3 ± 2.2 (0.001) | 8.0 ± 1.4 (0.001) | ||||||
| ©(6mth) | |||||||||
| 28.7 ± 11.4 | 26.5 ± 9.1 | 0.49 | 19.8 ± 12.7 | 23.4 ± 10.1 | 0.33 | 42.0 ± 3.1 | 39.3 ± 11.3 | 0.484 | |
| B(p*) | − 4.5 ± 3.6 (0.21) | 1.9 ± 4.0 (0.644) | − 1.0 ± 4.2 (0.81) | ||||||
| 1 year | |||||||||
| 68.0 ± 15.0 | 96.0 ± 3.6 | 0.001 | 74.6 ± 16.7 | 99.5 ± 4.4 | 0.001 | 78.3 ± 6.6 | 92.3 ± 3.0 | 0.001 | |
| B (p*) | 25.1 ± 1.9 (0.001) | 22.9 ± 2.3 (0.001) | 15.0 ± 1.1 (0.001) | ||||||
| ©(1 yr) | |||||||||
| 32.4 ± 11.9 | 29.8 ± 9.1 | 0.43 | 19.8 ± 12.7 | 23.1 ± 11.0 | 0.40 | 45.8 ± 5.2 | 42.7 ± 10.2 | 0.381 | |
| B (p*) | − 5.9 ± 3.9 (0.13) | 1.6 ± 4.3 (0.71) | − 1.2 ± 4.1 (0.77) | ||||||
Significance: p < 0.05 (in bold)
PP Psychopathology Group, Non-PP Non-Psychopathology Group, p pre-regression p-value, B(p) Unstandardized Coefficients(post-regression p-value); ©(6mth): Change in score at 6 months; ©(1 yr): Change in score at 1 year