The rate of premature birth across the United States rose for the third year in a row, according to the annual premature birth report card from March of Dimes, a nonprofit organization that works to improve maternal and infant health. This comes after nearly a decade of decline from 2007 to 2015.
In 2017, the premature birth rate was 9.93 percent of births, up slightly from 2016, when it was 9.85 percent. The report card draws from the latest Centers for Disease Control and Prevention data.