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Impact of Wildfire Smoke on Adverse Pregnancy Outcomes in Colorado, 2007–2015

Author

Listed:
  • Mona Abdo

    (Department of Epidemiology, Colorado School of Public Health, Aurora, CO 80045, USA)

  • Isabella Ward

    (Swedish Medical Center, Englewood, CO 80113, USA)

  • Katelyn O’Dell

    (Department of Atmospheric Science, Colorado State University, Fort Collins, CO 80523, USA)

  • Bonne Ford

    (Department of Atmospheric Science, Colorado State University, Fort Collins, CO 80523, USA)

  • Jeffrey R. Pierce

    (Department of Atmospheric Science, Colorado State University, Fort Collins, CO 80523, USA)

  • Emily V. Fischer

    (Department of Atmospheric Science, Colorado State University, Fort Collins, CO 80523, USA)

  • James L. Crooks

    (Department of Epidemiology, Colorado School of Public Health, Aurora, CO 80045, USA
    Division of Biostatistics and Bioinformatics and Department of Biomedical Research, National Jewish Health, Denver, CO 80206, USA)

Abstract

Colorado is regularly impacted by long-range transport of wildfire smoke from upwind regions. This smoke is a major source of ambient PM 2.5 . Maternal exposure to total PM 2.5 during pregnancy has been linked to decreased birth weight and other adverse outcomes, although the impact of wildfire smoke contribution has only recently been investigated. The objective of this study was to estimate associations between adverse pregnancy outcomes and ambient wildfire smoke PM 2.5 . Wildfire smoke PM 2.5 exposures were estimated using a previously published method incorporating ground-based monitors and remote sensing data. Logistic regression models stratified by ZIP code and mixed models with random intercept by ZIP code were used to test for associations. The primary outcomes of interest were preterm birth and birth weight. Secondary outcomes included gestational hypertension, gestational diabetes, neonatal intensive care unit admission, assisted ventilation, small for gestational age, and low birth weight. Exposure to wildfire smoke PM 2.5 over the full gestation and during the second trimester were positively associated with pre-term birth (OR = 1.076 (μg/m 3 ) −1 [95% CI = 1.016, 1.139; p = 0.013] and 1.132 (μg/m 3 ) −1 [95% CI = 1.088, 1.178]; p < 0.0001, respectively), while exposure during the first trimester was associated with decreased birth weight (−5.7 g/(μg/m 3 ) [95% CI: −11.1, −0.4; p = 0.036]). Secondary outcomes were mixed.

Suggested Citation

  • Mona Abdo & Isabella Ward & Katelyn O’Dell & Bonne Ford & Jeffrey R. Pierce & Emily V. Fischer & James L. Crooks, 2019. "Impact of Wildfire Smoke on Adverse Pregnancy Outcomes in Colorado, 2007–2015," IJERPH, MDPI, vol. 16(19), pages 1-16, October.
    • Handle: RePEc:gam:jijerp:v:16:y:2019:i:19:p:3720-:d:273033
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    References listed on IDEAS

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    1. Jia Coco Liu & Loretta J. Mickley & Melissa P. Sulprizio & Francesca Dominici & Xu Yue & Keita Ebisu & Georgiana Brooke Anderson & Rafi F. A. Khan & Mercedes A. Bravo & Michelle L. Bell, 2016. "Particulate air pollution from wildfires in the Western US under climate change," Climatic Change, Springer, vol. 138(3), pages 655-666, October.
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    Cited by:

    1. Emilia Basilio & Rebecca Chen & Anna Claire Fernandez & Amy M. Padula & Joshua F. Robinson & Stephanie L. Gaw, 2022. "Wildfire Smoke Exposure during Pregnancy: A Review of Potential Mechanisms of Placental Toxicity, Impact on Obstetric Outcomes, and Strategies to Reduce Exposure," IJERPH, MDPI, vol. 19(21), pages 1-29, October.
    2. Erin J. Belval & Matthew P. Thompson, 2023. "A Decision Framework for Evaluating the Rocky Mountain Area Wildfire Dispatching System in Colorado," Decision Analysis, INFORMS, vol. 20(4), pages 276-294, December.

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