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Updated: Jul 4, 2026

A Novel Method for Involving Women of Color at High Risk for Preterm Birth in Research Priority Setting
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Published on: January 12, 2018

Paternal race and preterm birth.

Hyagriv N Simhan1, Marijane A Krohn

  • 1Department of Obstetrics, Gynecology, and Reproductive Sciences, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA. hsimhan@mail.magee.edu

American Journal of Obstetrics and Gynecology
|June 10, 2008
PubMed
Summary
This summary is machine-generated.

Paternal race significantly impacts preterm birth risk. Black fathers increase preterm birth odds, especially in Black-Black couples. In Black-White couples, a Black mother further elevates this risk.

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Area of Science:

  • Reproductive Health
  • Perinatal Epidemiology
  • Sociodemographic Factors in Birth Outcomes

Background:

  • Preterm birth remains a leading cause of infant mortality and morbidity.
  • Understanding the influence of sociodemographic factors, including race, is crucial for targeted interventions.
  • Existing research has explored racial disparities in birth outcomes, but the specific role of paternal race and racial discordance requires further elucidation.

Purpose of the Study:

  • To investigate the association between paternal race and preterm birth.
  • To examine the contribution of parental racial discordance to preterm birth risk.
  • To determine if the race of the father or mother has a differential impact on preterm birth in racially discordant couples.

Main Methods:

  • Analysis of a large US natality cohort comprising 2,845,686 singleton births.
  • Self-reported race data was utilized for all parents.
  • Preterm birth was defined as delivery before 34 weeks of gestation.

Main Results:

  • Black couples exhibited significantly higher odds of preterm birth (aOR, 2.4) compared to White couples.
  • Black-White couples demonstrated increased odds of preterm birth compared to White couples.
  • Within Black-White couples, preterm birth odds were higher when the mother was Black (aOR, 1.7) versus when the father was Black (aOR, 1.2).

Conclusions:

  • Paternal Black race is independently associated with an elevated risk of preterm birth, irrespective of maternal race.
  • In White-Black couples, preterm birth risk is greater when the mother is Black compared to when the father is Black.
  • These findings highlight a differential contribution of parental race to preterm birth, emphasizing the importance of considering the parent of origin.