Clinicopathological significance of B-cell-specific Moloney murine leukemia virus insertion site 1 expression in gastric carcinoma and its precancerous lesion

Table 1 Expression of Bmi-1 in normal gastric mucosa, GC and precancerous lesion

Disease features	Cases (n)	Positive Bmi-1 expression rate			χ2	P
		-	+-+++	+-+++ (%)
N	162	127	35	21.6	74.844a	< 0.001
IM	82	17	65	79.3	16.510b	< 0.001
DYS	52	10	42	80.8	59.819c 13.067b	< 0.001
GC	162	77	85	52.5	33.088c	< 0.001

^aP < 0.001 vs IM;

^bP < 0.001 vs GC;

^cP < 0.001 vs N. N: Normal gastric mucosa; DYS: Dysplasia.