Prediction of labour onset in women who present with symptoms of preterm labour using cervical length.

Background: Diagnosis of preterm labour is difficult because initial symptoms and signs are often mild and may occur in continuing pregnancies. This study aims to investigate the utility of measuring cervical length, using transvaginal ultrasound, in women presenting to the delivery suite with symptoms of preterm labour.

Methods: This was a prospective cohort study performed in KK Women's and Children's Hospital, Singapore from September 2017 to July 2018.