Nomogram for Predicting the Relationship between the Extent of Visceral Pleural Invasion and Survival in Non-Small-Cell Lung Cancer

Table 2

Univariate and multivariate Cox regression analysis of the training group.

Variable	Univariate analysis	Multivariate analysis
	-value	HR (95% CI)	-value
Sex	<0.001
Female		Reference
Male		1.370 (1.332–1.410)	<0.001
Age(years)	<0.001
<60		Reference
≥60		1.374 (1.324–1.427)	<0.001
Race	<0.001
Black		Reference
White		1.039 (0.997–1.084)	0.0708
Other		0.820 (0.767–0.877)	<0.001
Marital Status	<0.001
Married		Reference
Divorced		1.203 (1.153–1.255)	<0.001
Single		1.172 (1.124–1.223)	<0.001
Widowed		1.371 (1.320–1.424)	<0.001
Unknown		1.084 (1.008–1.165)	0.0287
Histology	<0.001
AC		Reference
BAC		0.702 (0.649–0.759)	<0.001
LCC		1.388 (1.262–1.528)	<0.001
SC		1.193 (1.158–1.228)	<0.001
Grade	<0.001
I		Reference
II		1.204 (1.141–1.271)	<0.001
III		1.467 (1.390–1.547)	<0.001
IV		1.453 (1.293–1.634)	<0.001
T stage	<0.001
T1		Reference
T2		1.395 (1.339–1.454)	<0.001
T3		1.642 (1.571–1.717)	<0.001
T4		1.745 (1.667–1.826)	<0.001
N stage	<0.001
N0		Reference
N1		1.278 (1.228–1.330)	<0.001
N2		1.515 (1.472–1.559)	<0.001
N3		1.453 (1.395–1.514)	<0.001
M stage	<0.001
M0		Reference
M1		2.427 (2.361–2.494)	<0.001
Pleural	<0.001
PLX		Reference
		0.499 (0.484–0.515)	<0.001
		0.465 (0.430–0.503)	<0.001
		0.478 (0.441–0.519)	<0.001
		0.605 (0.546–0.670)	<0.001