Table 3.
Analysis of factors predicting patient survival after 2-session SRS (Cox proportional hazards model)
| Covariate | Hazard ratio (95% CI) | P value |
|---|---|---|
| Young (≤ 65 y/o) |
0.591 (0.299-1.17) |
0.130 |
| High KPS (≥ 90) |
0.803 (0.437-1.48) |
0.480 |
| Controlled Extra-CNS disease |
0.151 (0.057-0.405) |
< .001 |
| Short interval from cancer diagnosis to SRS (≤ 12 months) |
0.274 (0.127-0.593) |
0.001 |
| Single BM | 0.330 (0.169-0.656) | 0.002 |
SRS = stereotactic radiosurgery, CI = confidence interval, KPS = Karnofsky performance status, CNS = central nervous system, BM = brain metastasis.