Table 1.

Comparison of Preoperative Clinical, Therapeutic, and Tumor Features

ASA, American Society of Anethesiologists; CA, cancer antigen; CEA, carcinoembryonic antigen; CT, computed tomography; CTx, chemotherapy; CCRTx, chemoradiotherapy; EUS, endoscopic ultrasound.

^*Chi-square.

^†Initial adjacent organ invasion was evaluated by abdomen-pelvis CT scan and/or EUS before CTx or CCRTx.

^‡Mann-Whitney U test, mean±standard deviation. Significant values are indicated in bold face. Values in parentheses are percentages.