Log odds of positive lymph nodes is a better prognostic factor for oesophageal signet ring cell carcinoma than N stage

Figure 1 Study flow diagram of selection process. ICD-O-3: The third edition of the International Classification Disease for Oncology; WHO: World Health Organization.

Figure 2 Calculated by the Kaplan-Meier method, the 5-year overall survival and 5-year cancer-specific survival rates were 27. 0% and 41.3%, respectively. Kaplan-Meier survival curves of overall survival (A) and cancer-specific survival (B) for esophageal signet ring carcinoma patients after surgical resection.

Figure 3 Kaplan-Meier survival curves drawn with N stage and log odds of positive lymph nodes categories as univariates. Kaplan-Meier survival curves of overall survival stratified by N stage (A) and log odds of positive lymph nodes category (C) and cancer-specific survival stratified by N stage (B) and log odds of positive lymph nodes category (D) for esophageal signet ring carcinoma patients after surgical resection. LODDS: Log odds of positive lymph nodes.

Figure 4 Kaplan-Meier survival curves of overall survival curves with N stage and log odds of positive lymph nodes categories as univariates in the validation cohort. Kaplan-Meier survival curves of overall survival stratified by log odds of positive lymph nodes category (A) and N stage (B) in the validation cohort. LODDS: Log odds of positive lymph nodes.