Table 3: Multivariate Cox proportional hazards regression model analysis of survival of the 1305 glioma patients cohort. MGMT promoter methylation was not included in this analysis due to a low number of evaluable patients for this parameter.

ParameterOverall survivalProgression free survival
HR95% CI for HR HR95% CI for HR

Age > 60 years1.8311.358 to 2.4670.00011.4791.158 to 1.8890.0018
Surgery extent0.7750.588 to 1.0210.07151.0450.823 to 1.3260.7199
1p19q codeletion0.2020.098 to 0.415<0.00010.4910.326 to 0.7390.0007
IDH mutation0.3580.248 to 0.517<0.00010.4670.348 to 0.627<0.0001
IK > 700.4190.315 to 0.556<0.00010.4890.375 to 0.636<0.0001
P16 deletion1.5131.168 to 1.9600.00181.4711.165 to 1.8580.0013