Table 3. Univariate and multivariate analysis of clinicopathological variables for DFS in lung adenocarcinoma.

Subgroup	Univariable analysis			Multivariable analysis
	HR (95% CI)	P value		HR (95% CI)	P value
Age
>60 years	1.00			1.00
≤60 years	0.69 (0.30 to 1.61)	0.401		0.40 (0.15 to 1.08)	0.069
Sex
Male	1.00			1.00
Female	1.69 (0.72 to 3.95)	0.228		2.43 (0.77 to 7.65)	0.129
Smoking
No	1.00			1.00
Yes	1.13 (0.44 to 2.89)	0.803		4.43 (1.29 to 15.13)	0.018
Pathological T stage
T1a	1.00			1.00
T1b	0.00 (0.00 to 0.00)	0.975		0.00 (0.00 to 0.00)	0.976
T1c	0.18 (0.02 to 1.72)	0.135		0.18 (0.01 to 2.32)	0.190
T2a	0.14 (0.01 to 1.54)	0.107		0.17 (0.01 to 2.53)	0.200
T2b	0.15 (0.02 to 1.24)	0.078		0.18 (0.02 to 1.78)	0.144
T3	0.81 (0.09 to 7.30)	0.853		2.13 (0.16 to 27.99)	0.565
T4	2.37 (0.28 to 20.12)	0.429		6.18 (0.50 to 76.07)	0.155
Pathological N stage
N0	1.00			1.00
N1	0.62 (0.22 to 1.72)	0.358		2.31 (0.65 to 8.24)	0.195
N2	0.97 (0.19 to 4.99)	0.968		0.70 (0.11 to 4.55)	0.711
B3GNT3 expression
Negative	1.00			1.00
Positive	1.97 (0.77 to 5.04)	0.158		3.30 (1.04 to 10.50)	0.043