Mid-trimester levels of placental protein 5 are not predictive of preterm labour

A Rice1, T Chard1, V Hird1

  • 1a Departments of Obstetrics and Gynaecology, and Reproductive Physiology , St Bartholomew's Hospital Medical College and the London Hospital Medical College , London.

In earlier studies elevated maternal levels of placental protein 5 in the middle trimester were shown to be predictive of preterm labour. In a prospective study on 893 randomly selected pregnant women we were unable to confirm this association despite our own previous positive findings.