Table 2. Univariate and multivariable analyses of prognostic factors in lung adenocarcinoma for 5-year survival.

Variable	Univariate analysis			Multivariate analysis
	HR	P value	95% CI	HR	P value	95% CI
MAGE-A9 expression
High vs low	4.728	0.001*	2.989−7.477	3.356	0.001*	2.093−5.380
Gender
Male vs female	0.510	0.002*	0.330−0.788	0.533	0.007*	0.337−0.845
Age (years)
≤ 60 vs > 60	1.308	0.220	0.851−2.010
Tumor size (cm)
≤ 3 vs > 3	2.575	0.001*	1.669−3.972	1.616	0.066	0.968−2.700
Differentiation
Well and mod vs poorly	3.422	0.001*	2.247−5.211	2.780	0.001*	1.741−4.439
Lymph node metastasis
Yes vs no	1.964	0.002*	1.274−3.027	1.757	0.037*	1.035−2.983
TNM classification
stage I vs stage II vs stage III/IV	1.461	0.001*	1.163−1.835	0.907	0.590	0.636−1.293

^*P < 0.05; CI, confidence interval; HR, hazard ratio.