Does the application of diffusion weighted imaging improve the prediction of survival in patients with resected brain metastases? A retrospective multicenter study

Table 2 Comparison of models for predicting overall survival in brain metastases

Model	AIC	Concordance	R²
Graded Prognostic Assessment (GPA)	1335.30	0.5956	0.1058
Recursive Partitioning Analysis (RPA)	1328.94	0.5999	0.1232
GPA + Tumor ADC	1324.48	0.6277	0.1558
RPA + Tumor ADC	1321.84	0.6240	0.1582
GPA + WBRT + Tumor ADC	1292.37	0.6545	0.1834
RPA + WBRT + Tumor ADC	1290.61	0.6662	0.1825

ISSN: 1470-7330