Figure 2

Kaplan-Meier curve analysis of pre-treatment LDH serum levels (low— vs. high -------), according to ROC curve cut-off (≥0.89): (a) mPFS: 5.0 vs. 2.6 months (p = 0.0042, HR = 0.56, 95% CI: 0.37–0,87); (b) mOS: 7.7 vs. 5.6 months (p = 0.324, HR = 0.81, 95% CI: 0.54–1.24).