Table 1 Cox regression analysis in TCGA GBM patients.

Covariate	Univariate regression			Multivariate regression
Covariate	HR	95% CI	P	HR	95% CI	P
BCL3 expression	1.408	1.131–1.752	0.002	1.455	1.069–1.981	0.017
MGMT methylation	0.624	0.482–0.808	0.000	0.754	0.580–0.981	0.035
IDH1 mutation	0.232	0.075–0.724	0.012	0.490	0.153–1.573	0.231
Radiotherapy	0.357	0.287–0.445	0.000	0.424	0.307–0.585	0.000
Chemotherapy	0.576	0.471–0.705	0.000	0.650	0.492–0.860	0.003
Procurement method	1.155	0.864–1.543	0.330	1.055	0.734–1.516	0.773
Age	1.035	1.027–1.044	0.000	1.027	1.016–1.039	0.000