Fig. 2.
Kaplan-Meier survival curves showing observed 5-year survival for gastric non-cardia adenocarcinoma (a) and gastric cardia adenocarcinoma (b) stratified by surgical treatment (yes or no). Patients undergoing tumor resection for gastric non-cardia adenocarcinoma (c) and gastric cardia adenocarcinoma (d) are further stratified by calendar periods. Survival of the patients not undergoing surgery for gastric non-cardia adenocarcinoma (e) and gastric cardia adenocarcinoma (f) are shown stratified by calendar period