Variable | β coefficient (95% CI) | p value |
---|---|---|
Hospital type | 0.04 (−3.49 to 3.57) | 0.98 |
Sex | 2.63 (−1.11 to 6.38) | 0.17 |
Comorbidity | −0.06 (−1.46 to 1.33) | 0.93 |
Age | 0.06 (−0.12 to 0.24) | 0.53 |
Preoperative WOMAC score | 0.22 (0.11 to 0.34) | < 0.001 |
CI = confidence interval; WOMAC = Western Ontario McMaster University Osteoarthritis Index.18