Table 2.

Univariate and multivariate Cox regression analysis in the training set

Variables	Univariate Cox regression		Multivariate Cox regression
	HR (95% CI)	P	HR (95% CI)	P
Age (>40 vs ≤40)	0.81 (0.51‐1.30)	0.383
T stage (T3‐4 vs T1‐2)	3.28 (1.93‐5.60)	<0.001	1.446 (1.036‐2.019)	0.0027
N stage (N1‐3 vs N0)	3.89 (2.26‐6.70)	<0.001	2.849 (1.626‐4.991)	<0.001
mRNAs signature (high risk vs low risk)	3.89 (2.53‐5.98)	<0.001	3.236 (2.095‐4.997)	<0.001

CI: confidence interval; HR: hazard ratio.