Table 4. ER serum and tissue expression.

Variables	Mutation	Non-mutation	P	OR (95%CI)
ERα
Serum	29.83±0.83	30.95±1.70	0.079	1.963 (0.963-4.00)
Tissue	34.14±0.74	34.68±0.57	0.060	4.261 (1.023-17.74)
ERβ
Serum	23.61±2.54	22.78±2.21	0.438	0.859 (0.635-1.163)
Tissue	33.93±1.23	34.10±1.05	0.613	1.149 (0.604-2.188)