Fig. 3

Prognostic significance of NTRS in glioma patients. a The cut-off value was determined by ROC analysis. Patients with a higher NTRS (> = 0.078) were classified as the NTRS^High group, and those with a lower NTRS (< 0.078) were classified as the NTRS^Low group. b survival analysis of glioma patients with a high NTRS (NTRS^High) versus low NTRS (NTRS^Low) in the training set and validation set. The hazard ratio was determined by the Mantel-Haenszel method, and the P value was determined by the chi-square test between the two groups. c, d Prognostic efficiency of NTRS in patients with different grades and subgroups. e ROC curves of the prediction of 2-year survival with NTRS and other markers in the training set and validation set