Table 6.

Multiple analysis of factors associated with overall survival

Variables	Overall survival
	HR	95% CI	P
Infiltration (T1–T2 vs. T3–T4)	3.041	1.162–7.962	*0.024
LN staging (N0 vs. N1–N3)	3.946	1.509–10.320	**0.005
Intratumoral Foxp3+ (low vs. high)	2.039	1.039–3.999	*0.038

Multivariate analysis, Cox proportional hazards regression model. Variables were adopted for their prognosis significance by univariate analysis

*P < 0.05

**P < 0.01