Association of ABO blood groups with ovarian reserve: a retrospective cohort study in Chinese Han women younger than 40 years with infertility

Table 1 Comparison of general characteristics between the two groups for infertile women

	n	age (years)	Duration of infertility (years)	BMI (kg/m²)	FSH (mlU/mL)	LH (mlU/mL)	FSH/LH	E2 (pg/mL)	P (ng/mL)
DOR	411	35 (31-38)	4 (2-7)	22.38(20.40-24.22)	10.93(9.1-13.8)	3.39(2.28-4.63)	3.38(1.67-3.96)	42.26(32.74-64.06)	0.57(0.35-1.05)
non-DOR	1279	31 (28-34)	3 (2-6)	21.63(19.92-24.03)	8.74(7.03-10.68)	3.42(2.24-5.23)	2.63(1.67-3.96)	42.26(32.74-64.06)	0.66(0.40-1.16)
z		−12.796	−1.970	−3.135	−11.858	− 1.095	−7.325	−0.923	−3.072
P		<0.001	0.049	0.002	<0.001	0.273	<0.001	0.356	0.002

Data presented as a median and interquartile range; Continuous variables were compared using the Mann-Whitney test
BMI Body mass index, P Progesterone, FSH Follicle stimulating hormone, LH Luteinizing hormone, E2 Estradiol

ISSN: 1757-2215