Fig. 2: Survival probability by NLR and MPN.

Kaplan–Meier curves (plots A–D) for the whole population, no MPN, prevalent MPN, and incident MPN. Survival probability on the y-axis and years of follow-up since the 1st NLR (plots A–C) or the 2nd NLR (plot D) on the x-axis. The Logrank test was used to compare the survival distribution between NLR groups. When comparing no MPN vs. prevalent MPN (1st NLR), those in transition to MPN were not excluded from the no MPN group. 10-year survival probability was calculated for plots A–D. NLR Neutrophil-to-lymphocyte ratio.