Long-Term Outcomes Following Hepatic Resection and Radiofrequency Ablation of Colorectal Liver Metastases

Table 4

Results of multivariate Cox Proportional Hazards regression model of predictors of overall survival in patient with solitary liver metastases.

		Hazard ratio	95% confidence		𝑃-value
			interval
Procedure	RFA	1.00
	Resection	0.38	0.18	0.81	.013
Size of lesion(s)	<5 cm	1.00
	≥5 cm	3.06	1.43	6.55	.004
Timing of Lesion(s)	Synchronous	1.00
	Metachronous	3.36	1.39	8.14	.007