Table 3.

Multivariate predictors of survival

Variables	Risk ratio	95% CI	P value
Group, the experimental group /control			0.925
T stage, T1 ~ 3/T4	15.071	1.809–125.553	0.012
Histological diagnosis, Well and intermediately differentiated/poorly differentiated			0.360
Change of tumor markers, Decrease and stable/increase			0.167
N stage, N0/N1–3			0.122
P stage, 1–2/3			0.076