Fig. 5

Disease-specific survival curves according to NSCLC of LVD. a In the total cohort of patients (n = 312), the median survival in the LVD <5 group was 54.5 months, compared with 34.0 months in the LVD ≥5 group. b In all patients with N+ status (n = 159), the median survival in the LVD <5 group was 53.7 months, compared with 29.4 months in the LVD ≥5 group (LVD ≥5, because the mean score of LVD was 4.8 ± 2.8)