Table 3.

Reproductive outcomes of the single IUI group.

Characteristics	HCG administration	Spontaneous ovulation	OR (95% CI)	AOR (95% CI)	P	P adj
Clinical pregnancy	131/464 (28.23%)	196/899 (21.80%)	1.41 (1.09 1.81)	1.39 (1.08 1.81)	0.009	0.011
Miscarriage	15/132 (11.36%)	17/196 (8.67%)	1.35 (0.65 2.81)	1.27 (0.60 2.67)	0.421	0.530
Live birth	116/464 (25.00%)	179/899 (19.91%)	1.34 (1.03 1.74)	1.34 (1.02 1.74)	0.032	0.034

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).