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Multivariate Cox Proportional Hazards Model Results for Overall Survival After the Gamma Knife Procedurea
| Hazard Ratio | ||
|---|---|---|
| (95% Confidence | ||
| Clinical Parameter (n = 172)* | Interval) | P |
| Time from initial surgery to GK, mo | ||
| 14.8-20.3 (vs ≤14.8) | 1.55 (0.96-2.51) | .07 |
| >20.3 (vs ≤14.8) | 0.57 (0.36-0.90) | .02 |
| Age at GK, y | ||
| >53.7 (vs ≤53.7) | 1.49 (1.09-2.05) | .01 |
| Margin treatment prescription dose, Gy | ||
| >15.5 (vs ≤15.5) | 0.57 (0.41-0.80) | .001 |
aGK, Gamma Knife.
