The prediction of preterm labour by recording spontaneous antenatal uterine activity.

The recording of spontaneous antenatal uterine activity was assessed as a predictor of preterm labour in a group of patients considered at high risk on the basis of a past history of preterm delivery. The recording of individual uterine contractions greater than or equal to 15 mmHg between 20 and 28 weeks gestation was found to be useful for the prediction of preterm labour in this high risk group.