Fig. 4

Cancer-specific survival in the subgroups on whether with left gastric artery LNM. Cancer-specific survival curves were used to compare the prognostic significance between the groups with and without left gastric artery metastasis. Kaplan–Meier method, and the log-rank test was used to construct the curves. a CSS in subgroups of male; b CSS in subgroups of female; c CSS in subgroups of without postoperative adjuvant therapy; d CSS in subgroups of with postoperative adjuvant therapy; e CSS in subgroups of middle thoracic esophagus; f CSS in subgroups of upper thoracic esophagus; g CSS in subgroups of lower thoracic esophagus; h CSS in subgroups of well differentiation; l CSS in subgroups of moderate differentiation; m CSS in subgroups of poor/un- differentiation