Figure 2.

Kaplan-Meier survival distributions of elderly glioblastoma patients stratified for the extend of surgical resection, intraoperative use of 5ALA and CRT regime. Greater extent of surgical resection (A), intraoperative use of 5ALA (B), and more aggressive CRT regimes (C) were associated with significantly improved survival compared to respective controls. Survival distributions were compared using pairwise log-rank test (D). mOS, median overall survival; 95%CI, 95% confidence intervals.