Table 1.

Previous series of liver metastases in pathological livers

	Country	Cases (n)	LM in NL (%)	LM in PL (%)	P-value	Liver disease
Hamaya et al.7	Japan	240,377	43.20	26.30	>0.05	Cirrohosis
Vanbockrijck8	Belgium	2162	46.40	33.30	<0.01	Cirrohosis
Hayashi et al.9	Japan	839	16.02	1.65	<0.01	Fatty liver
Ustunomiya et al. (1999)13	Japan	438	21.20	8.10	>0.05	Infection HBV/HCV
Song et al.10	China	512	27.10	13.50	<0.05	Infection HBV
Lascone et al. (2005)15	Belgium	747	32.00	4.70	<0.05	Cirrhosis
Qian et al.12	China	2352	23.47	7.86	<0.01	Hepatitis+cirrosis
Qiu et al.11	China	1298	28.16	14.16	<0.01	Hepatitis infection
Wang et al.17	China	354	16.90	2.6	<0.01	Hepatitis infection
Zeng et al.18	China	2868	18.64	8.85	<0.01	Hepatitis infection
Murono et al.16	Japan	604	9.61	3.17	>0.05	Fatty liver

LM liver metastasis, NL normal liver, PL pathological liver, HBV hepatitis B virus, HCV hepatitis C virus