Table 3 Multivariate analyses of predictive factors for brain metastases following prophylactic cranial irradiation in patients with locally advanced non-small cell lung cancer in recursive partitioning analysis group 1.
Variable | Estimate (mo) | SE | 95% CI | p-value |
|---|---|---|---|---|
Gender (female) | 15.7 | 0.56 | 14.6–16.8 | 0.28 |
Age (< 60) | 15.0 | 0.62 | 13.8–16.2 | 0.15 |
Histology (epidermoid) | 16.6 | 0.58 | 15.4–17.7 | 0.16 |
T-stage (3–4) | 16.9 | 0.63 | 15.6–18.4 | 0.92 |
N-stage (2–3) | 16.2 | 0.65 | 15.0–17.5 | 0.07 |