Table 3 Comparison of the outcomes of selective termination with RFA performed before and after 20 weeks of gestational age

pregnancies after RFA

<0.001

singleton pregnancies

101 (75.4)

164 (95.4)

twin pregnancies

33 (24.6)

8 (4.7)

outcome

0.22

Live born

106 (79.1)

135 (78.5)

Failure

1 (0.7)

0 (0)

Miscarriage

7 (5.2)

13 (7.6)

IUFD

6 (4.5)

15 (8.7)

TOP

3 (1.0)

3 (1.7)

PPROM

11 (8.2)

6 (4.5)

Gestational week at PPROM

21.9 (15.6–26)

25.6 (23.8–26.7)

0.145

(1) PPROM within 24 h

2 (1.5)

2 (1.2)

(2)24 h ≤ PPROM≤4 weeks

4 (3.0)

4 (2.3)

(3) PPROM after 4 weeks

5 (3.7)

0 (0)

Alive fetuses

Gestational week at delivery

35.93 (28–38)

36 (28.54–38.14)

0.253

Gestational age of preterm delivery before 34 weeks

30 ± 1.6

30.7 ± 1.72

0.142

Interval from RFA to delivery (wks)

18.5 ± 3.8

13 ± 3.9

<0.001

Birthweight of alive fetus (g)

2528 ± 776

2605 ± 705

0.438