Multivariate linear and logistic regression: time to MCID and early MCID achievement.
| Predictors | β/OR | 95% CI | P |
| Linear regression (β): days to MCID achievement (MCID achievers only) | |||
| ASA ≥3 | −13.1 | −45.9 to 19.8 | 0.430 |
| CCI score | 9.5 | −2.6 to 21.6 | 0.122 |
| Severe disability | −47.4 | −84.4 to –10.5 | 0.013 |
| Linear regression (β): days to MCID achievement (all patients) | |||
| ASA ≥3 | 28.0 | −15.8 to 71.7 | 0.208 |
| CCI score | 14.8 | 0.56 to 29.0 | 0.042 |
| Severe disability | −77.0 | −127.8 to −26.2 | 0.003 |
| Logistic regression (OR): early MCID achievement | |||
| ASA ≥3 | 0.64 | 0.30–1.35 | 0.236 |
| CCI score | 0.76 | 0.59–0.98 | 0.038 |
| Severe disability | 2.95 | 1.23–7.04 | 0.015 |
Abbreviations: ASA, American Society of Anesthesiologists Score; CCI, Charlson Comorbidity Index; MCID, minimal clinically important difference.
Note: P values < 0.05 in bold.