Table 1.

Patient characteristics

	Primary tumors (N  =  133)	Liver metastases (N  =  396)
Age, median (range)	57 (32–78)	58 (13–80)
Sex
Male	65.4% (87/133)	67.7% (268/396)
Female	34.6% (46/133)	32.3% (128/396)
Primary site
Right	21.8% (29/133)	17.7% (70/396)
Left	78.2% (104/227)	82.3% (326/396)
Timing of metastasis
Synchronous	82.0% (109/133)	72.2% (286/396)
Metachronous	18.0% (24/133)	27.8% (110/396)
MSI status
MSI-H	1.5% (2/133)	1.3% (5/396)
MSS	98.5% (131/133)	98.7% (391/396)