Comparison of maternal risk factors between placental abruption and placenta previa

The purpose of this study was to compare risk factors between placental abruption and placenta previa among primiparous and multiparous singleton pregnancies. We analyzed data from a population-based retrospective cohort with singleton pregnancies in the United States for 1995 to 2000. Maternal risk factors for placenta previa and placental abruption were examined using multiple logistic regressions. A total of 5,630,854 primiparous and 11,026,768 multiparous singleton pregnancies were available for final analyses after excluding subjects with missing information on outcomes or important exposures. Placental abruption was recorded in 4.8 per 1000 primiparous singleton births and 5.9 per 1000 multiparous singleton pregnancies. The occurrence of placenta previa was 1.9 per 1000 primiparous singleton pregnancies and 3.9 per 1000 multiparous singleton pregnancies. The effects of maternal age, race, parity, and previous cesarean section were stronger on placenta previa than on placental abruption, and the effects of cigarette smoking, alcohol drinking, and prenatal care were stronger on placental abruption than on placenta previa. A composite outcome of selected medical and pregnancy complications was related with placental abruption but not with placental previa. Placental abruption is more likely to be affected by conditions occurring during pregnancy, and placenta previa is more likely to be affected by conditions existing prior to pregnancy.

Medienart:

E-Artikel

Erscheinungsjahr:

2009

Erschienen:

2009

Enthalten in:

Zur Gesamtaufnahme - volume:26

Enthalten in:

American journal of perinatology - 26(2009), 4 vom: 20. Apr., Seite 279-86

Sprache:

Englisch

Beteiligte Personen:

Yang, Qiuying [VerfasserIn]
Wen, Shi Wu [VerfasserIn]
Phillips, Karen [VerfasserIn]
Oppenheimer, Lawrence [VerfasserIn]
Black, Douglas [VerfasserIn]
Walker, Mark C [VerfasserIn]

Links:

Volltext

Themen:

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't

Anmerkungen:

Date Completed 07.07.2009

Date Revised 23.03.2009

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1055/s-0028-1103156

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM18460396X