Table 4.

Univariate and multivariate analysis of postoperative oral immunochemotherapy

PICTx, postoperative oral immunochemotherapy; CEA, carcinoembryonic antigen; B-I/II, Bormann type-fungating/ulcerofungating; B-III/IV, Bormann type-ulceroinfiltrative/infiltrative; WD, well-differentiated; MD, moderately differentiated; PD, poorly differentiated; SRC, signet ring cell carcinoma; LVi, lymphovascular invasion.

Regimen of postoperative oral immunochemotherapy: single or combination therapy of oral chemotherapy agent (tegafur/uracil or doxifluridine) and immune modulator (polysaccharide-K) for 3 to 12 months.

Univariate analysis, Kaplan-Meier; multivariate analysis, Cox regression.