Fig. 4

Disease-specific survival curves according to NSCLC of MVD. a In the total cohort of patients (n = 312), the median survival in the MVD <22 group was 57.1 months, compared with 31.7 months in the MVD ≥ 22 group. b In all patients with N+ status (n = 159), the median survival in the MVD <22 group was 52.4 months, compared with 31.8 months in the MVD ≥22 group (MVD ≥22, because the mean score of MVD was 21.6 ± 12.0)