| ||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 2011-2013 (average) in Portland, preterm birth rates were highest for women ages 40 and older (13.3%), followed by women under age 20 (10.6%), ages 20-29 (8.9%) and ages 30-39 (8.4%). |
| ||Of all infants born during 2011-2013 (average), 4.1% were to mothers under the age of 20, 37.1% were to mothers ages 20-29 years, 53.8% were to mothers ages 30-39 years, and 4.9% were to mothers ages 40 and older. |
March of Dimes 2020 Goal
Reduce preterm births to no more than 9.6% 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 May 24, 2016, from www.marchofdimes.org/peristats.