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2014 to 2023 Saw Increase in Percentage of Infants Delivered Preterm

Medically reviewed by Carmen Pope, BPharm. Last updated on June 5, 2025.

By Elana Gotkine HealthDay Reporter

WEDNESDAY, June 4, 2025 -- From 2014 to 2023, there was an increase in the percentage of infants delivered preterm, according to a report published in the June Health E-Stats, a publication of the National Center for Health Statistics.

Joyce Martin, M.P.H., and Michelle J.K. Osterman, M.H.S., from the National Center for Health Statistics in Hyattsville, Maryland, used birth certificate data from the National Vital Statistics System data files to examine trends in early-term singleton births in the United States from 2014 to 2023 overall and by maternal age.

The researchers observed a 13 percent increase in the percentage of infants delivered preterm from 2014 to 2023, from 7.74 to 8.71 percent, among all births. A 22 percent increase was seen in the percentage of early-term births, from 24.31 to 29.64 percent, with increases of 47 percent for births at 37 weeks and 9 percent for births at 38 weeks (8.17 to 12.05 percent and 16.13 to 17.58 percent, respectively). In contrast, full-term births declined 7 percent (from 60.76 to 56.68 percent), and late and postterm births declined from 7.20 to 4.97 percent. Early-term births increased 21 and 23 percent for mothers younger than 30 years and for those aged 30 years and older, respectively.

From 2014 to 2023, there was a 77 percent increase in the percentage of early-term births for which labor was induced, from 17.7 to 31.3 percent. The percentage of births induced at 37 and 38 weeks increased 81 and 68 percent, respectively.

Abstract/Full Text

Disclaimer: Statistical data in medical articles provide general trends and do not pertain to individuals. Individual factors can vary greatly. Always seek personalized medical advice for individual healthcare decisions.

© 2025 HealthDay. All rights reserved.

Posted June 2025

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