Table 4.

Reproductive outcomes of the double IUI group.

Characteristics	HCG administration	Spontaneous ovulation	OR (95% CI)	AOR (95% CI)	P	P adj
Clinical pregnancy	1,059/3,879 (27.30%)	92/368 (25.00%)	1.12 (0.88 1.44)	1.12 (0.88 1.44)	0.343	0.356
Miscarriage	110/1,059 (10.39%)	16/92 (17.39%)	0.55 (0.31 0.99)	0.52 (0.29 0.94)	0.039	0.029
Live birth	949/3,879 (24.46%)	76/368 (20.66%)	1.24 (0.96 1.62)	1.25 (0.96 1.62)	0.102	0.103

Data are presented as n/n (%) for dichotomous variables OR Odd ratio, AOR adjusted odd ratio.

Clinical pregnancies were confirmed by the presence of a fetal heartbeat on ultrasound scanning 7 weeks after insemination. Miscarriage was defined as loss of a clinical pregnancy before the 28th week of gestation. Live birth was defined as delivery of a live neonate after 28 weeks' gestation.

Analyses were adjusted for maternal age, BMI, number of intrauterine insemination events, and basal hormone levels (FSH, LH, estradiol, AMH).