Table 4.
Multivariable cox proportional hazards models with propensity score for overall survival in patients receiving treatment for anal adenocarcinoma
| Significant characteristic | Hazard of death (95% CI) | P |
|---|---|---|
| Cox model with propensity score | ||
| Age | ||
| ≤65 | Reference | |
| >65 | 2.30 (1.95‐2.71) | <0.0001 |
| Prop score | 0.31 (0.16‐0.59) | 0.0004 |
| Surgical approach | ||
| No | Reference | |
| Yes | 0.58 (0.50‐0.68) | <0.0001 |
| Comorbid score | ||
| 0 | Reference | |
| 1 | 1.18 (0.96‐1.46) | 0.12 |
| ≥2 | 1.64 (1.22‐2.19) | 0.0009 |
| Grade | ||
| 1 (well‐differentiated) | Reference | |
| 2 (moderately differentiated) | 1.15 (0.88‐1.50) | 0.32 |
| 3 (poorly differentiated) | 1.51 (1.26‐1.81) | <0.001 |
CI, confidence interval.