Table 2. Univariate and multivariate analyses of predictive factors for disease-free survival.

HR, hazard ratio; CI, confidence interval; BMI, body mass index; WD, well differentiated; MD, moderately differentiated; PD, poorly differentiated; PNI, prognostic nutritional index; Dindo, Clavien-Dindo classification grade; ASA, American Society of Anesthesiologists; AV, anal verge; LOW, low rectal cancer, AV < 5 cm; MID/UPPER, middle/upper rectal cancer, AV ≥ 5 cm; CEA, carcinoembryonic antigen.