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Particulate pollutants and racial/ethnic disparity in feto-infant morbidity outcomes

Hamisu M Salihu1, Nafisa Ghaji, Alfred K Mbah

  • 1Department of Obstetrics and Gynecology, College of Medicine, University of South Florida, 2 Tampa General Circle, Tampa, FL 33606, USA. hsalihu@health.usf.edu

Maternal and Child Health Journal
|August 12, 2011
PubMed

Insights

Exposure to air particulate pollutants increases feto-infant morbidity risks, particularly for Black women. These environmental factors exacerbate existing racial disparities in adverse birth outcomes, highlighting a critical area for public health intervention.

Area of Science:

  • Environmental Health
  • Reproductive Epidemiology
  • Perinatal Outcomes

Background:

  • Air particulate matter (PM) exposure is a growing public health concern.
  • Feto-infant morbidity outcomes are influenced by various environmental factors.
  • Racial/ethnic disparities in birth outcomes are well-documented.

Purpose of the Study:

  • To assess the association between air particulate pollutants (PM2.5, PM10, coarse PM) and feto-infant morbidity.
  • To examine these associations across different racial/ethnic subgroups.
  • To investigate the impact of particulate pollutants on widening Black-White disparities in adverse birth outcomes.

Main Methods:

  • Retrospective cohort study (2000-2007) using linked Florida databases (hospital discharge, vital statistics, EPA air/meteorological data).
  • Exposure assignment via computerized modeling based on proximity to air pollution monitoring sites.
  • Primary outcomes: low birth weight, very low birth weight, preterm birth, very preterm birth, small for gestational age (SGA). Adjusted odds ratios approximated relative risks.

Main Results:

  • Increased feto-infant morbidity associated with exposure to any of the three particulate pollutants (above median exposure).
  • Exposed women showed higher odds for low birth weight, very low birth weight, and preterm birth.
  • Black women exposed to particulate pollutants had the highest odds for all morbidity outcomes, especially very low birth weight (AOR=3.32).

Conclusions:

  • Environmental particulate pollutants are linked to adverse feto-infant outcomes.
  • Black women experience disproportionately higher risks from particulate pollutant exposure.
  • Particulate pollutants exacerbate Black-White disparities in adverse fetal outcomes, indicating a need for targeted interventions.

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