Gynaecology & Obstetrics Cut-off value of cervical length at 24 weeks of gestation for prediction of preterm delivery is : A 0.5 cm B 1.5 cm C 2.5 cm D 3.5 cm 💡 Explanation Cut-off value of cervical length at 24 weeks of gestation for prediction of preterm delivery is : ✓ Correct Answer: C. 2.5 cm