Table 2.
Baseline characteristics of TKR patients with WOMAC stiffness subscale score = 3+ compared to those reporting score < 3
| Factor | WOMAC stiffness = 3+ | WOMAC stiffness < 3 | P value |
|---|---|---|---|
| Age (years), mean ± SD | 66 ± 8.6 | 67.4 ± 8.8 | 0.28 |
| Female sex, N (%) | 48 (69.6%) | 82 (65.6%) | 0.35 |
| Charlson comorbidity index score, mean ± SD | 0.5 ± 1.1 | 0.5 ± 1.0 | 0.89 |
| BMI (kg/m2), mean ± SD | 29.7 ± 5.5 | 29.6 ± 5.4 | 0.94 |
| LEAS score (1–18), mean ± SD | 9.2 ± 2.9 | 9.5 ± 3.0 | 0.45 |
| SF-36 MCS (0–100), mean ± SD | 50.3 ± 12.9 | 51.9 ± 11.3 | 0.38 |
| SF-36 PCS (0–100), mean ± SD | 33.4 ± 7.3 | 34.0 ± 8.4 | 0.61 |
| WOMAC pain (0–20), mean ± SD | 10.3 ± 2.8 | 8.8 ± 3.6 | 0.004 |
| WOMAC stiffness (0–8), mean ± SD | 4.8 ± 1.4 | 4.1 ± 1.5 | 0.001 |
| WOMAC function (0–68), mean ± SD | 33.3 ± 9.7 | 30.51 ± 1.6 | 0.09 |
| Patient expectations score (0–100), mean ± SD | 78.3 ± 17.4 | 78.3 ± 17.8 | 0.99 |