| ||Maternal age is a risk factor for preterm birth, with higher preterm birth rates found among the youngest and oldest mothers in the U.S. |
| ||During 2012-2014 (average) in the United States, preterm birth rates were highest for women ages 40 and older (14.3%), followed by women ages 30-39 (10.0%), under age 20 (10.0%) and ages 20-29 (9.1%). |
| ||Of all infants born during 2012-2014 (average), 7.1% were to mothers under the age of 20, 51.3% were to mothers ages 20-29 years, 38.7% were to mothers ages 30-39 years, and 3.0% were to mothers ages 40 and older. |
March of Dimes 2020 Goal
Reduce preterm births to no more than 8.1% of live births.
For more information, see here.
Healthy people 2020
Preterm births: reduce to no more than 11.4% of live births.
National Center for Health Statistics, final natality data.
Retrieved October 25, 2016, from www.marchofdimes.org/peristats.