Figure 4.
Prognosis of Chinese Criteria grouping in all thoracic ESCC patients, upper and lower mediastinal ESCC patients after adjuvant therapy. (A) In all patients (after adjuvant therapy), the OS rate in the mediastinal metastasis group was significantly lower than that in the local metastasis group (P=0.002). The OS rate in the local metastasis group tended to be lower than that in the skip metastasis group, the difference was not significant (P=0.140). The survival difference between the skip and no metastasis groups was significant (P=0.021). (B) In upper mediastinum (after adjuvant therapy), no significant prognostic differences were found among four groups. (C) In lower mediastinum (after adjuvant therapy), the OS rate in the mediastinal metastasis group was significantly lower than in the local metastasis group (P=0.008), meanwhile, the survival difference between the skip and no metastasis groups was significant (P=0.012). However, no significant difference of prognosis was found between skip and local metastasis group (P=0.370). ESCC, esophageal squamous cell carcinoma; OS, overall survival.