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Development of the Oral Microbiota

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Modeling Ascending Vaginal Infection, Preterm Birth, and Neonatal Morbidity in Mice
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Modeling Ascending Vaginal Infection, Preterm Birth, and Neonatal Morbidity in Mice

Published on: October 10, 2025

Obstetric antecedents for preterm delivery.

Michael M Slattery1, Michael Geary, John J Morrison

  • 1Rotunda Hospital, Parnell Square, Dublin 1, Ireland. mlslattery@hotmail.com

Journal of Perinatal Medicine
|July 5, 2008
PubMed
Summary

Spontaneous idiopathic preterm labor is the main cause of preterm delivery (PTD) in Irish urban populations. Identifying these factors is key for future interventions to reduce PTD incidence and improve outcomes.

Area of Science:

  • Obstetrics and Gynecology
  • Perinatal Medicine
  • Reproductive Health

Background:

  • Preterm delivery (PTD) remains a significant challenge in perinatal medicine.
  • Understanding the specific obstetric antecedents is crucial for targeted interventions.
  • Previous studies have highlighted various risk factors, but population-specific data are essential.

Purpose of the Study:

  • To investigate the obstetric antecedents of preterm delivery (PTD) in an Irish urban population.
  • To evaluate the incidence and outcomes of early preterm deliveries (EPTD) and late preterm deliveries (LPTD).
  • To identify key causative factors for PTD to inform potential therapeutic strategies.

Main Methods:

  • Retrospective observational study of all preterm deliveries at the Rotunda Hospital, Dublin (1997-2002).

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  • Analysis of early preterm deliveries (24+0-31+6 weeks' gestation) and late preterm deliveries (32+0-36+6 weeks' gestation) separately.
  • Examination of obstetric causative factors including spontaneous labor, multiple gestation, hypertensive disorders, and antepartum hemorrhage.

    • Main Results:

    • A total of 2839 (7.3%) preterm deliveries were recorded out of 38,795 deliveries.
    • Spontaneous unexplained preterm delivery was the leading cause, accounting for 43.0% of PTD.
    • Other significant factors included multiple gestation (23.8%), hypertensive disorders (8.6%), and antepartum hemorrhage (6.8%).
    • Perinatal mortality rate was 63 per 1000 for PTD, with higher rates for EPTD (158 per 1000) compared to LPTD (37 per 1000).

    Conclusions:

    • Spontaneous idiopathic preterm labor is the principal obstetric factor in 43% of preterm deliveries in this population.
    • These findings provide valuable insights into the obstetric landscape of PTD in an Irish urban setting.
    • Targeted interventions for spontaneous idiopathic preterm labor could significantly benefit women at risk.