Category: singleton births

Recent Declines in Induction of Labor by Gestational Age

During the 1980s, 1990s, and through 2006, the length of pregnancies in the United States shortened. From 1981 through 2006, the proportion of infants born at less than 39 completed weeks of gestation increased nearly 60%, while births at 39 weeks or more declined more than 20%. This shift in the gestational age distribution has Read More >