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. 2019 Aug;7(16):381. doi: 10.21037/atm.2019.07.63

Figure 3.

Figure 3

Comparison on prognosis of the Chinese Criteria grouping and N stage. (A) In N1 stage, the OS rate in the mediastinal metastasis group was significantly lower than in the local metastasis group (P=0.005). The OS rate in the local metastasis group tended to be lower than that in the skip metastasis group but the difference was not significant (P=0.456). (B) In N2 stage, the OS rates in the mediastinal metastasis group and the local metastasis group were not significantly different (P=0.363). The OS in the local metastasis group was significantly lower than that in the skip metastasis group (P=0.019). (C) In N3 stage, no significant difference in OS rate in the Chinese Criteria groups was found in N3 stage. (D) In local metastasis group, the OS rates in each N-stage was significantly lower in the local metastasis group, with N3 stage being significantly lower than in N2 stage (P=0.036), and N2 stage was significantly lower than in N1 stage (P<0.001). (E) In mediastinal metastasis group, significant differences in OS rates between the N3 and N2 stages were found (P=0.010). The OS rate in N2 stage tended to be lower than that in N1 stage; but the difference was not significant (P=0.369). (F) In skip metastasis group, No significant differences in OS rate in all N-stages were found in the skip metastasis group. OS, overall survival.