Fig. 1.
Kaplan–Meier curves for overall survival and locoregional control rate for all included patients (A), overall survival rate according to M status (B), and overall survival and locoregional control rate according to resectability (C, D). Abbreviations: M0 = patients without non-regional lymph nodal metastasis, M1LYM = patients with supraclavicular lymph nodes included in the irradiation fields, Unresectable = patients with tracheal invasion or major vessel involvement of the primary tumor or metastatic lymph nodes.