TABLE 7.

Cox proportional hazards models (following backward elimination) showing the relationship between OS and liver PFS in 120 patients with diffuse CRC LM treated with IHP and in 105 patients for whom preoperative CEA was known

	Parameter estimate	P-value	Hazard ratio (HR)	95% CI for HR
Survival (n = 120)
HAI	0.58	0.0039	1.78	1.20, 2.64
Survival (n = 105)
HAI	0.54	0.013	1.72	1.12, 2.63
Preoperative CEA	0.83	0.0012	2.29	1.39, 3.78
Liver PFS (n = 120)
HAI	1.02	<0.0001	2.79	1.87, 4.16
Liver PFS (n = 105)
HAI	1.17	<0.0001	3.22	2.06, 5.03
Preoperative CEA	0.85	0.0006	2.35	1.44, 3.82

CI confidence interval