Low birthweight in relation to placental abruption and maternal thrombophilia status

American Journal of Obstetrics and Gynecology
Carl A NathNew Jersey-Placental Abruption Study Investigators

Abstract

The objective of the study was to evaluate whether the association between low birthweight and placental abruption is mediated through preterm birth or restricted fetal growth and whether these associations were influenced by maternal thrombophilia status. Data were derived from the New Jersey-Placental Abruption Study, an ongoing, multicenter, case-control study conducted in New Jersey since August 2002. Abruption cases (n = 156) were identified based on a clinical diagnosis, and controls (n = 170) were matched to cases based on parity and maternal race. Low birthweight (<2500 g) was stratified based on preterm birth (<37 weeks' gestation) and small for gestational age (birthweight < the 10th percentile for gestational age). Maternal thrombophilia assessment was based on serum evaluation (protein C and S deficiency, activated protein C resistance ratio, and anticardiolipin antibodies) as well as genetic polymorphisms (methylenetetrahydrofolate reductase, prothrombin gene, and factor V Leiden). Associations were expressed based on odds ratios (ORs) with 95% confidence interval (CI). Among abruption cases, 60.3% (n = 94) were low birthweight in comparison with 11.2% (n = 19) of controls (OR, 13.7; 95% CI, 7.4-25.2). Furthermore,...Continue Reading

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Citations

Dec 23, 2009·Obstetrics and Gynecology·Robert M SilverUNKNOWN Eunice Kennedy Shriver National Institute of Child Health and Human Development Maternal-Fetal Medicine Units (NICHD MFMU) N
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Jun 9, 2017·American Journal of Epidemiology·Katheryne L DownesKatherine L Grantz

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