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Wildfire particulate exposure and risks of preterm birth and low birth weight in the Southwestern United States.
- Source :
-
Public Health (Elsevier) . May2024, Vol. 230, p81-88. 8p. - Publication Year :
- 2024
-
Abstract
- Wildfire air pollution is a growing concern on human health. The study aims to assess the associations between wildfire air pollution and pregnancy outcomes in the Southwestern United States. This was a retrospective cohort study. Birth records of 627,404 singleton deliveries in 2018 were obtained in eight states of the Southwestern United States and were linked to wildfire-sourced fine particulate matter (PM 2.5) and their constituents (black carbon [BC] and organic carbon [OC]) during the entire gestational period. A double-robust logistic regression model was used to assess the associations of wildfire-sourced PM 2.5 exposures and preterm birth and term low birth weight, adjusting for non-fire-sourced PM 2.5 exposure and individual- and area-level confounder variables. Wildfire-sourced PM 2.5 contributed on average 15% of the ambient total PM 2.5 concentrations. For preterm birth, the strongest association was observed in the second trimester (odds ratio [OR]: 1.06, 95% confidence interval [CI]: 1.05–1.07 for PM 2.5 ; 1.06, 95% CI: 1.05–1.07 for BC; 1.04, 95% CI: 1.03–1.05 for OC, per interquartile range increment of exposure), with higher risks identified among non-smokers or those with low socio-economic status. For term low birth weight, the associations with wildfire-sourced PM 2.5 exposures were consistently elevated for all trimesters except for the exposure averaged over the entire gestational period. Overall, the associations between wildfire-sourced PM 2.5 and pregnancy outcomes were stronger than those with total PM 2.5. Wildfire-sourced PM 2.5 and its constituents are linked to higher risks of preterm birth and term low birth weight among a significant US population than the effects of ambient total PM 2.5. [ABSTRACT FROM AUTHOR]
- Subjects :
- *RISK assessment
*STATISTICAL correlation
*AIR pollution
*WILDFIRES
*PREMATURE infants
*LOGISTIC regression analysis
*PREGNANCY outcomes
*RETROSPECTIVE studies
*DESCRIPTIVE statistics
*LOW birth weight
*LONGITUDINAL method
*BIRTH certificates
*ODDS ratio
*DURATION of pregnancy
*ENVIRONMENTAL exposure
*RESEARCH
*MEDICAL records
*ACQUISITION of data
*GESTATIONAL age
*PARTICULATE matter
*ATTRIBUTION (Social psychology)
*CONFIDENCE intervals
Subjects
Details
- Language :
- English
- ISSN :
- 00333506
- Volume :
- 230
- Database :
- Academic Search Index
- Journal :
- Public Health (Elsevier)
- Publication Type :
- Academic Journal
- Accession number :
- 176586282
- Full Text :
- https://doi.org/10.1016/j.puhe.2024.02.016