Table 3.
Multivariate analysis
| Factor | Estimate | p value | HR | 95% CI |
|---|---|---|---|---|
| Dose | 0.0021 | |||
| ≤15 versus ≥21 | 3.10 | 0.0036 | 22.21 | [2.76; 178.56] |
| 16–20 versus ≥21 | 2.22 | 0.0305 | 9.18 | [1.23; 68.49] |
| Size (≤10 versus >10) mm | −0.47 | 0.1127 | 0.63 | [0.35; 1.12] |
| WBRT (Yes versus No) | 0.09 | 0.7877 | 1.09 | [0.58; 2.05] |