Table 4.

Log-rank Tests for Prognostic Factors Affecting Local Tumor control

Factors	P-value
Gender	0.698
Age (≥ 65 y vs. < 65 y)	0.971
Treatment character (primary vs. recurrent)	0.914
No. of brain metastases (solitary vs. multiple)	0.997
Primary tumor (controlled vs. uncontrolled)	0.394
Extracranial metastasis (yes vs. no)	0.667
KPS (≥ 80 vs. < 80)	0.085
RPA class	0.811