Treatment type | Number | No. of brain surgery (%) | aHR (95Â % CI) |
---|---|---|---|
WBRT | 20241 | 420 (2.1) | 1.00 (reference) |
WBRT+ gefitinib | 3379 | 113 (3.3) | 0.74 (0.70-0.79)* |
WBRT + GK | 155 | 20 (12.9) | 0.50 (0.37-0.68)* |
WBRT+ gefitinib + GK | 99 | 13 (13.1) | 0.43 (0.31-0.61)* |