Figure 2:

Recurrence-free and overall survival curves of STAS (+) and STAS (−) groups. (A) Recurrence-free survival curve in any place. (B) Recurrence-free survival curve related with loco-regional recurrence. (C) Recurrence-free survival curve related with distant metastasis. (D) Overall survival curve. (E) Lung cancer-related overall survival. Number of patients with recurrence and mortality was described in Supplementary Material, D3. Results of Kaplan–Meier survival analysis with log-rank tests were described in Supplementary Material, D5. STAS: spread through air spaces.