Table 1.

Baseline characteristics of the patients

ECOG, Eastern Cooperative Oncology Group; WD-MD, adenocarcinoma, well differentiated and adenocarcinoma, moderate differentiated; PDSRC, adenocarcinoma, poorly differentiated and signet ring cell carcinoma. ^a)p-values from Pearson's χ² test, except for age (Kruskal-Walis test).