Table 3. The association of CEA and CA125 with mortality.

Variables	Categorical						Continuous
	Model 1			Model 2			Model 1			Model 2
	HR (95% CI)	P value		HR (95% CI)	P value		HR (95% CI)	P value		HR (95% CI)	P value
CEA	3.92 (1.70–9.05)	0.001		2.59 (1.10–6.12)	0.03		3.30 (2.07–5.27)	<0.001		2.38 (1.45–3.90)	0.001
CA125	1.36 (0.68–2.71)	0.38		0.71 (0.33–1.55)	0.39		1.46 (1.01–2.12)	0.046		1.43 (0.72–1.81)	0.57

Model 1: crude; Model 2: adjusted for DLCO% pred., age, pulmonary hypertension, honeycombing, emphysema. CEA, carcinoembryonic antigen; CA125, carbohydrate antigen 125; HR, hazard ratio; CI, confidence interval; DLCO% pred., percent predicted for diffusion capacity of the lung for carbon monoxide.