Vol. 63, No. 20
May 23, 2014
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QuickStats: Percentage of Infants Born Late Preterm,* by Mother's State of Residence — National Vital Statistics System, United States, 2012
WeeklyMay 23, 2014 / 63(20);453
* Defined as a gestational age (interval between the date of the mother's last normal menses and the date of birth) of 34–36 completed weeks. Late preterm births accounted for 70% of all preterm births in 2012 and are considered to be at less risk than births at <34 weeks (early preterm) but at greater risk for birth complications and subsequent health or medical problems than full-term births.
In 2012, 8.1% of births in the United States were late preterm births. The percentage of births that were late preterm varied by state and ranged from 6.2% in Vermont to 12.0% in Mississippi.
Sources: Martin JA, Hamilton BE, Osterman, MJK, Curtin SC, Mathews T. Births: final data for 2012. Natl Vital Stat Rep 2013;62(9). Available athttp://www.cdc.gov/nchs/data/nvsr/nvsr62/nvsr62_09.pdf .
US Department of Health and Human Services. Health indicators warehouse. Hyattsville, MD: US Department of Health and Human Services; 2013. Available at http://www.healthindicators.gov.
Reported by: Kate M. Brett, PhD, firstname.lastname@example.org, 301-458-4113; Li-Hui Chen, PhD.
Alternate Text: The figure above shows the percentage of infants born late preterm, by mother's state of residence during 2012. In 2012, 8.1% of births in the United States were late preterm births. The percentage of births that were late preterm varied by state and ranged from 6.2% in Vermont to 12.0% in Mississippi.