Table 3.

Multivariate analyses for predictors associated with a pathologic complete response

Variable	OR (95% CI)	p-valuea)
CEA < 4.4 ng/dL	6.71 (1.22-36.97)	0.03
Sustained lymphocyte ratio ≥ 0.35	8.33 (1.54-45.12)	0.02
Clinical N stage	0.22 (0.02-2.57)	0.22

OR, odds ratio; CI, confidence interval; CEA, carcinoembryonic antigen.

^a)Logistic regression with backward stepwise method was performed.