Table 2 Pregnancy outcomes of the study population according to cerclage indications

Gestational age of abortion

19.8 ± 2.1

17

22.3 ± 1.1

Gestational age at delivery (week)

34.9 ± 5.3

36.1 ± 4.2

31.7 ± 5.2

Duration from cerclage to delivery (week)

18.6 ± 6.9 ^a

17.8 ± 5.9^b

11 ± 5.3 ^a,b

Pregnancy loss (< 22 weeks)

4 (9.8%)

1 (5.9%)

1 (6.7%)

Preterm birth < 28 weeks

4 (9.8%) ^a

1 (5.9%) ^b

5 (33.3%) ^a,b

Preterm birth < 34 weeks

11 (26.8%) ^a

2 (11.8%) ^b

9 (60%) ^a,b

Preterm birth < 37 weeks

17 (41.5%)

8 (47.1%)

9 (60%)

Delivery ≥ 37 weeks

20 (48.8%)

8 (47.1%)

5 (33.3%)

Delivery type

Vaginal delivery

17 (47.2%)

5 (31.25%)

6 (42.9%)

Cesarean section

19 (52.8%)

11 (68.75%)

8 (57.1%)

Complications

8 (19.5%)

2 (11.8%)

6 (40%)

PPROM

7 (17.1%)

2 (11.8%)

6 (40%)

Chorioamnionitis

1 (2.4%)

0

0