title: Antepartum haemorrhage: the influence of first trimester uterine bleeding.
abstract: The influence of first trimester uterine bleeding on the incidence of antepartum haemorrhage was evaluated in 374 patients. The incidence of abruptio placentae and placenta previa were 1.0% and 2.0% respectively in these patients. In the control group of patients who did not experience first trimester uterine bleeding, the incidence was 0.4% for abruptio placentae and 1.0% for placenta previa. The study indicates that first trimester threatened abortion is associated with 2 1/2 fold risk of abruptio placenta and placenta previa than in the general obstetric population. The possible reasons for these incidences are discussed.
authors.affiliation: Department of Obstetrics and Gynaecology, University College Hospital, Ibadan, Nigeria.
authors.forename: J Y
authors.initials: JY
authors.lastname: Obed
authors.forename: I F
authors.initials: IF
authors.lastname: Adewole
mesh_terms: D000033:Abortion, Threatened / Q000150:complications*; D000037:Abruptio Placentae / Q000209:etiology*; D005260:Female; D006801:Humans; D015994:Incidence; D010923:Placenta Previa / Q000209:etiology*; D011237:Predictive Value of Tests; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D012189:Retrospective Studies; D012307:Risk Factors