Table 4. Association of p53/ERβ expression and muscular invasion with the incidence of regional lymph node metastasis and/or postoperative recurrence in patients with endometrial endometrioid carcinoma.

	Myometrial invasion
p53 / ERβ	<1/2		≥1/2		Total
- / low	0/61	(0%)	0/9	(0%)	0/70	(0%)	a
+ / low	0/10	(0%)	0/6	(0%)	0/16	(0%)	b
- / high	3/18	(16.7%)	4/14	(28.6%)	7/32	(21.9%)	b,c
+ / high	6/16	(37.5%)	16/20	(80.0%)	22/36	(61.1%)	a,c

a,b and c: p<0.01