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

Table 1

Overall patient characteristics.

		All patients	Resection	RFA	Both	𝑃-value (Res versus RFA)∗
𝑛		113	58	43	12
Age	Median	67	67	67	63	NS
	Range	28 to 83	28 to 83	37 to 83	45 to 82
Gender	M	61	29	25	7	NS
	F	52	29	18	5
Primary site	Colon	80	44	29	7	NS
	Rectal	33	14	14	5
ASA score	Median	2	2	2	2	NS
	Range	1 to 3	1 to 3	2 to 3	2 to 3
Timing of primary	Synchronous	51	24	21	6	NS
	Metachronous	62	34	22	6
Node Pos primary†	Yes	69	33	27	9	NS
	No	34	20	13	1
No. lesions	Median	1	1	2	3.5	NS
	Range	1 to 7	1 to 7	1 to 6	1 to 5
Solitary lesion	Yes	58	37	19	0	<.001
	No	54	20	24	12
Size (cm)	Median	4	4.1	3	4.8	.012
	Range	1 to 14.5	1.5 to 14.5	1 to 7.5	1.2 to 7
Bilateral disease†	Yes	22	2	13	7	<.001
	No	31	17	11	5
Preop CEA (mg/L)†	Median	18.1	24	18.1	6.1	NS
	Range	0 to 699	0 to 279	1 to 699	2 to 58

^∗𝑃-value for comparison between patients undergoing resection alone compared to those undergoing RFA alone.
†There are missing values for some patients for the marked variables.