title: The risk of stillbirth and infant death stratified by gestational age in women with gestational diabetes.
abstract: OBJECTIVE
  We sought to compare the different mortality risks between delivery and expectant management in women with gestational diabetes mellitus (GDM).
  
  
  METHODS
  This is a retrospective cohort study that included singleton pregnancies of women diagnosed with GDM delivering at 36-42 weeks' gestational age in California from 1997 through 2006. A composite mortality rate was developed to estimate the risk of expectant management at each gestational age incorporating the stillbirth risk during the week of continuing pregnancy plus the infant mortality risk at the gestational age 1 week hence.
  
  
  RESULTS
  In women with GDM, the risk of expectant management is lower than the risk of delivery at 36 weeks (17.4 vs 19.3/10,000), but at 39 weeks, the risk of expectant management exceeds that of delivery (relative risk, 1.8; 95% confidence interval, 1.2-2.6).
  
  
  CONCLUSIONS
  In women with GDM, infant mortality rates at 39 weeks are lower than the overall mortality risk of expectant management for 1 week; absolute risks of stillbirth and infant death are low.
authors.affiliation: Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Francisco, San Francisco, CA, USA. rosensteinm@obgyn.ucsf.edu
authors.forename: Melissa G
authors.initials: MG
authors.lastname: Rosenstein
authors.forename: Yvonne W
authors.initials: YW
authors.lastname: Cheng
authors.forename: Jonathan M
authors.initials: JM
authors.lastname: Snowden
authors.forename: James M
authors.initials: JM
authors.lastname: Nicholson
authors.forename: Amy E
authors.initials: AE
authors.lastname: Doss
authors.forename: Aaron B
authors.initials: AB
authors.lastname: Caughey
mesh_terms: D002140:California / Q000453:epidemiology; D016640:Diabetes, Gestational / Q000453:epidemiology*; D005260:Female; D005865:Gestational Age; D006801:Humans; D007226:Infant Mortality; D007231:Infant, Newborn; D011247:Pregnancy; D012189:Retrospective Studies; D012306:Risk; D050497:Stillbirth / Q000453:epidemiology*