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Location: Illinois
Topic: Previous preterm by maternal age
Format: PRAMS Graph
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Previous preterm by maternal age: Illinois, 2009

Note: Vertical lines in graph represent 95% confidence intervals. Certain categories are not shown due to small numbers or missing data.
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• In Illinois in 2009, 17.7% of mothers 20-24 who had a previous live birth reported their previous child was born preterm (<37 completed weeks gestation), compared to 11.7% of mothers ages 25-34, and 10.2% of mothers ages 35 and older. 


  • Previous preterm birth: mother reported her previous live birth was born preterm (<37 completed weeks of gestation). Only reported for mothers who had a previous live birth.
  • For more information about the availability of PRAMS data by state and year, refer to the Calculations page.


  • Centers for Disease Control and Prevention, Pregnancy Risk Assessment Monitoring System.
  • Retrieved March 23, 2018, from