Table IV.

Univariate analyses of median survival time and PFS of patients with glioblastoma.

Variable	No. of cases	MST	P-value (log-rank)	PFS	P-value (log-rank)
MGMT promoter methylation status
Methylated	22	24.9	0.06	15.0	0.03
Unmethylated	28	15.2		8.5
CBV ratio
<1.3	23	19.5	0.53	8.3	0.72
≥1.3	27	14.7		11.3
CBF ratio
<1.8	24	22.8	0.10	8.6	0.86
≥1.8	26	13.6		10.9
CBV ratio <1.3
MGMT methylated	5	45.7	0.15	15.7	0.23
MGMT unmethylated	18	17.3		8.0
CBV ratio ≥1.3
MGMT methylated	17	24.9	0.07	15.0	0.06
MGMT unmethylated	10	13.1		8.6
CBF ratio <1.8
MGMT methylated	5	NA	0.22	32.6	0.09
MGMT unmethylated	19	19.5		8.6
CBF ratio ≥1.8
MGMT methylated	17	24.9	0.01	15.0	0.04
MGMT unmethylated	9	10.1		8.1

NA, not applicable.