The underlying causes of 80% of perinatal deaths were identified in a study of 53,518 pregnancies in the United States: 17% of the deaths were due to amniotic fluid infections, 11% to abruptio placentae, 10% to premature rupture of the membranes, 9% to congenital anomalies, 6% to large placental infarcts, and the rest to more than 20 other specific disorders.
(JAMA 238:228-229, 1977)
Naeye RL. Causes of Perinatal Mortality in the US Collaborative Perinatal Project. JAMA. 1977;238(3):228–229. doi:10.1001/jama.1977.03280030036017
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