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

Table 3

Results of multivariate Cox Proportional Hazards regression model of predictors of overall survival.

		Hazard ratio	95% confidence		𝑃-value
			interval
Procedure	RFA	1.00
	Resection	0.36	0.19	0.70	.002
Size of lesion(s)	<5 cm	1.00
	≥5 cm	2.43	1.26	4.67	.008
No. lesions	<5	1.00
	≥5	6.08	2.21	16.70	<.001
Timing of lesion(s)	Synchronous	1.00
	Metachronous	2.92	1.50	5.70	.002