Epidemiology of moderate preterm, late preterm and early term delivery

Clin Perinatol. 2013 Dec;40(4):601-10. doi: 10.1016/j.clp.2013.07.001. Epub 2013 Sep 20.


Moderate preterm, late preterm, and early term deliveries represent a major and growing public health concern. These deliveries are associated with significant financial burden and pose serious risks to mothers and newborns. Women who deliver at moderate and late gestational ages in one pregnancy are at increased risk of delivering at these gestational ages, or earlier, in a subsequent pregnancy. Births in moderate preterm and late preterm gestational ages are associated with significant infant morbidity and mortality. Efforts to reduce deliveries in moderate preterm and late preterm gestations and interventions designed to ameliorate the problems in infants delivered at the gestational ages may be targets worthy of future investigation.

Keywords: Early term delivery; Epidemiology; Late preterm delivery; Preterm delivery; Trends.

Publication types

  • Review

MeSH terms

  • Female
  • Gestational Age*
  • Humans
  • Infant, Newborn
  • Male
  • Perinatal Mortality*
  • Pregnancy
  • Premature Birth / epidemiology*
  • Premature Birth / physiopathology
  • Premature Birth / prevention & control
  • Prevalence
  • Risk Factors