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Differences in mean Oxford Knee Score and mean SF-36 (PF) for patients with low and high preoperative Pain Catastrophizing Score
| Low (n = 205) vs high (n = 207) PCS | ||||||
|---|---|---|---|---|---|---|
| Time | OKS | 95% CI | P value | SF36 (PF) | 95% CI | P value |
| Preoperative | 7.5 | (6.4, 8.7) | 0.000 | 16.7 | (12.7, 20.6) | 0.000 |
| 4 months | 2.8 | (1.2, 4.3) | 0.001 | 6.2 | (2.0, 10.5) | 0.004 |
| 12 months | 3.9 | (2.2, 5.5) | 0.000 | 7.0 | (2.4, 11.7) | 0.003 |
