Table 2 Obstetric and perinatal outcomes after programmed FET group versus tNC-FET group

PIH

4.4%(78/1783)

7.3%(40/550)

1.71(1.16–2.54)^*

1.845(1.03–3.30)^*

Placenta previa

1.0%(17/1783)

0.9%(5/550)

0.95(0.35–2.60)

1.340(0.39–4.59)

GDM

9.4%(168/1783)

7.3%(40/550)

0.75(0.53–1.08)

0.901(0.56–1.47)

PPROM

2.5%(44/1783)

2.0%(11/550)

0.81(0.41–1.57)

1.119(0.46–2.70)

Cesarean section

68.0%(1212/1783)

72.9%(401/550)

1.27(1.03–1.57)^*

1.026(0.77–1.36)

Preterm birth

9.3%(166/1783)

12.0%(66/550)

1.33(0.98–1.80)

1.714(1.11–2.66)^*

Low birth weight (< 2500 g)

5.3%(95/1783)

8.2%(45/550)

1.58(1.10–2.29)^*

1.988(1.18–3.35)^*

Macrosomia (> 4500 g)

9.9%(177/1783)

11.6%(64/550)

1.10(0.88–1.62)

1.033(0.66–1.61)