What is the impact of first pregnancy outcome for future pregnancy planning in Japan?

Figures & data

Table 1. Pregnancy outcomes of Japanese women who prior 5 deliveries compared with those of age-matched Japanese women with parity 2.

	Women with parity 5	Women with parity 2
Numbers	41	82
Maternal age (y)	36.1 ± 3.7	36.1 ± 3.7
Body mass index at delivery
≥28	8 (20%)	11 (13%)
Pregnancy induced hypertension	1 (2.4%)	2 (2.4%)
Gestational diabetes mellitus	0 (0%)	1 (2.4%)
Gestational age at delivery
<37 weeks	5 (12%)	5 (6.1%)
Delivery mode
Elective Cesarean delivery	5 (12%)	20 (24%)
Emergent Cesarean delivery	1 (2.4%)	5 (6.1%)
Postpartum hemorrhage
≥1000 ml	3 (7.3%)	6 (7.3%)
Hemotransfusion	0 (0%)	0 (0%)
Neonatal birth weight
<2500 g	4 (9.8%)	8 (9.8%)
≥3500 g	10 (24%)	13 (16%)
Apgar score at 1 min
<7	0 (0%)	1 (1.2%)
Umbilical artery pH
<7.0	0 (0%)	0 (0%)

Table 2. First pregnancy outcomes of Japanese women with parity 5 compared with those of age-matched primiparous women.

	Subject group	Control group
Numbers	41	82
Maternal age (y)	20.8 ± 2.6	20.8 ± 2.6
Body mass index at delivery
≥28	4 (9.8%)	6 (7.3%)
Pregnancy induced hypertension	0 (0%)	0 (0%)
Gestational diabetes mellitus	0 (0%)	0 (0%)
Gestational age at delivery
<37 weeks	2 (4.9%)	11 (13%)
Delivery mode
Elective Cesarean delivery	1 (2.4%)	1 (1.2%)
Emergent Cesarean delivery	0 (0%)	12 (15%)*
Postpartum hemorrhage
≥1000 ml	1 (2.4%)	10 (12%)
Hemotransfusion	0 (0%)	0 (0%)
Neonatal birth weight
<2500 g	1 (2.4%)	9 (11%)
≥3500 g	2 (4.9%)	6 (7.3%)
Apgar score at 1 min
<7	0 (0%)	4 (4.8%)
Umbilical artery pH
<7.0	0 (0%)	1 (1.2%)

*p < 0.05.