Ultrasound-Indicated Cerclage in Twin Pregnancies: A Cohort Study

Table 2

Comparison of pregnancy outcomes based on singleton or twin pregnancy.

Pregnancy outcomes study population ()	Singleton pregnancy ()	Twin pregnancy ()	value
Preoperative cervical length (mm)	13.6 (4.0–24.0)	14.6 (3.5–25.0)	0.65
GA at delivery (weeks)	36.1 (25.5–40.4)	32.6 (23.6–37.4)	0.004
Cerclage to delivery interval (days)	101 (23–152)	87 (20–141)	0.01
Preterm delivery
<34 weeks	15 (26.8)	20 (52.6)	0.02
<32 weeks	15 (26.8)	16 (42.1)	0.18
<28 weeks	6 (10.7)	6 (15.8)	0.54
<24 weeks	2 (3.6)	1 (2.6)	1

Data are expressed as medians (ranges) and number (percentage). , which means statistical difference. GA: gestational age.