Figure 2

Impact of AJCC Seventh Edition N staging (A) and MLNR staging (B) on disease-specific survival of ESCC patients who underwent radical resection. (A) The disease-specific survival rates of N0, N1, N2 and N3 patients in AJCC Seventh Edition N staging were 65.5%, 42.9%, 22.2% and 0, respectively (N0 vs N1, P = 0.017; N1 vs N2, P = 0.050; N2 vs N3, P < 0.001). (B) The disease-specific survival rates of MLNR0, MLNR1, MLNR2 and MLNR3 patients were 65.5%, 45.0%, 21.1% and 0, respectively (MLNR0 vs. MLNR1, P = 0.026; MLNR1 vs MLNR2, P = 0.033; MLNR2 vs. MLNR3, P = 0.015).