mPGES-1 expression in non-cancerous liver tissue impacts on postoperative recurrence of HCC

Table 1 Microsomal prostaglandin E synthase-1 expression in hepatocellular carcinoma and non-cancerous liver tissue n (%)

	No. of cases	Patients with higher scores	Patients with lower scores	Scores (mean ± SD)	P
Hepatocellular carcinoma tissues
Well differentiated	18	7/18 (38.9)	11/18 (61.1)	5.1 ± 2.7	-
Moderately differentiated	40	14/40 (35.0)	26/40 (65.0)	5.1 ± 1.7	0.959a
Poorly differentiated	6	0	6/6 (100)	3.0 ± 1.8	0.009a
Non-cancerous liver tissues
Normal	2	1/2 (50.0)	1/2 (50.0)	3.3 ± 0.7	-
Chronic hepatitis	31	19/31 (61.3)	12/31 (38.7)	5.4 ± 1.9	0.006b
Cirrhosis	31	15/31 (48.4)	16/31 (51.6)	6.4 ± 1.6	0.002b, 0.039c
Normal livers from colorectal cancer	7	0	7/7 (100)	3.5 ± 0.5	-

^avs well differentiated hepatocellular carcinomas;

^bvs normal livers;

^cvs chronic hepatitis.