Table 4. Multivariate analysis of factors associated with survival after reirradiation using FSRT.

HR: hazard ratio, ReRT: reirradiation, FSRT: fractionated stereotactic radiotherapy, WT: wild type, ECOG: Eastern Cooperative Oncology Group

Positive Factor	HR	95% CI	P-value
ReRT with FSRT vs No ReRT	0.17	0.08–0.34	<0.001
IDH1 mutation vs WT	0.19	0.05–0.73	0.016
Occipital recurrence vs other lobes	0.29	0.09–0.88	0.029
Negative factor	-	-	-
ECOG of 1 vs 0	2.67	0.98–7.56	0.064
ECOG of 2 vs 0	3.77	1.20–11.81	0.023