Table 4. The expression of estrogen receptor (ER) or progesterone receptor (PR) in endometrial cancer between premenopause and postmenopause.

Type 1 (n = 815)	Premenopause (n = 364)	Postmenopause (n = 451)	P value
ER positive (number, %)	338 (92.8%)	413 (91.5%)	P = 0.587
PR positive (number, %)	338 (92.8%)	406 (90.0%)	P = 0.191
Type 2 (n = 239)	Premenopause (n = 82)	Postmenopause (n = 157)
ER positive (number, %)	65 (79.3%)	84 (53.5%)	P = 0.0001
PR positive (number, %)	67 (81.7%)	92 (58.5%)	p = 0.0004