Table 2.

Pregnancy outcomes among different infertility etiologies for IVF compared to spontaneous pregnancies in singleton pregnancies

	Control		Ovulation disorder		Tubal disease		Endometriosis		Male infertility		Mixed infertility
Singleton pregnancies	N	%	N	%	N	%	N	%	N	%	N	%
Maternal outcomes	6832		271		542		74		267		87
Gestational hypertension	271	4	13	4.8	18	3.3	3	4.1	18	6.7^	2	2.3
Preeclampsia	193	2.8	22	8.1*	23	4.2	2	2.7	9	3.4	4	4.6
Mild	63	0.9	8	3*	7	1.3	0	0	2	0.2	1	1.1
Severe	130	1.9	14	5.2*	16	3	2	2.7	7	2.6	3	3.4
Preterm preeclampsia	46	0.7	8	3*	5	0.9	0	0	3	1.1	2	2.3
GDM	1132	16.6	76	28*	129	23.8*	15	20.3	57	21.3^	25	28.7^
Placenta previa	94	1.4	3	1.1	18	3.3^	8	10.8^	13	4.9*	5	5.7*
Placental abruption	92	1.3	7	2.6	7	1.3	2	2.7	2	0.7	4	4.6^
pPROM	154	2.3	13	4.8^	19	3.5	3	4.1	11	4.1	3	3.4
Placenta accreta	148	2.2	7	2.6	20	3.7^	3	4.1	11	4.1^	3	3.4
Postpartum haemorrhage	574	8.4	31	11.4	59	10.9^	6	8.1	21	7.9	9	10.3
ICP	16	0.2	3	1.1^	4	0.7^	0	0	1	0.4	0	0
Polyhydramnios	61	0.9	4	1.5	7	1.3	1	1.4	5	1.9	0	0
Oligohydramnios	247	3.6	14	5.2	18	3.3	4	5.4	12	4.5	2	2.3
Chorioamnionitis	91	1.4	7	2.6	10	1.8	2	2.7	3	1.1	4	4.6^

Note: GDM Gestational diabetes mellitus, pPROM preterm premature rupture of membranes, ICP intrahepatic cholestasis of pregnancy; Mixed infertility refers to multiple infertility-related diagnosis. Data are presented as n (%) for dichotomous variable, P values were assessed by using the Pearson’s chi-square test, or Fisher’s exact test between each infertility subgroup vs controls ; P ≤ 0.001 = *; P < 0.05 = ^. Nonsignificant numbers have not symbol