Use of tobacco, marijuana, or other illicit drugs during pregnancy is associated with increased risk of stillbirth, according to a study funded by the Eunice Kennedy Shriver National Institute of Child Health and Human Development.
The case-control study was conducted by researchers with the Stillbirth Collaborative Research Network, which captures data on births in 5 US regions. The authors collected data on all stillbirths in the network’s coverage area between March 2006 and September 2008 and used a representative sample of women with live births as a control group (Varner MW et al. Obstet Gynecol. 2014;123:113–125).
Kuehn BM. Marijuana, Tobacco Use Associated With Stillbirth Risk. JAMA. 2014;311(4):350. doi:10.1001/jama.2013.286112
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