Association between clinicopathological features and survival of gastric cancer.

Abbreviation: MST, median survival time; HR, hazard ratio; CI, confidence interval; AJCC, American Joint Commission on Cancer. aPartial data were not available, and statistics were based on available data. bThe information about the depth of invasion was not available for two patients; invaded depth of tumor was classified according to the criteria of AJCC 7th. cLymph nodes were staged according to tumor-node-metastasis classification of the 7th edition of AJCC in which the number of lymph nodes with a metastasis of 1∼2, 3∼6 and ≥7 were classified as N1, N2 and N3, respectively. §Mean survival time was presented when the median survival time could not be measured.