Meeting paperSMFM PaperThe risk of stillbirth and infant death stratified by gestational age in women with gestational diabetes
Section snippets
Materials and Methods
We designed a retrospective cohort study of singleton births to women diagnosed with GDM identified through the California Vital Statistics Birth Certificate Data linked with the California Patient Discharge Data as well as Vital Statistics Death Certificate Data and Vital Statistics Fetal Death File from 1997 through 2006.13 Linkage of data was performed by the California Office of Statewide Health Planning and Development Healthcare Information Resource Center under the State of California
Results
Our dataset included 4,190,953 nonanomalous deliveries from gestational ages of 36-42 weeks, including 193,028 deliveries to women with GDM. Women with GDM were more likely to be older, be Latina or Asian rather than white or African American, and carry a diagnosis of chronic hypertension. There was a slight decrease in gestational age at delivery (38.8 vs 39.1 weeks) and a slight increase in birthweight at delivery (3475 vs 3415 g) (Table 1).
The risk of stillbirth increased continuously with
Comment
GDM is a condition specific to pregnancy with known short- and long-term risks to mother and fetus. In this analysis, contrary to other recent studies, we showed that women with GDM were more likely than women without diabetes to experience a stillbirth >35 weeks. This increased risk persisted at all gestational ages except at 42 weeks, likely because few women with GDM receiving prenatal care in California remained undelivered at 42 weeks' gestational age. This study is the first to examine
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Y.W.C. is supported by grant number HD01262, National Institute of Child Health and Human Development, as a Women's Reproductive Health Research Scholar.
The authors report no conflict of interest.
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Cite this article as: Rosenstein MG, Cheng YW, Snowden JM, et al. The risk of stillbirth and infant death stratified by gestational age in women with gestational diabetes. Am J Obstet Gynecol 2012;206:309.e1-7.