Evidence map›Paper›PMID 34797578›Full record

ArticlePaediatric and perinatal epidemiology2022

The association between wildfire exposure in pregnancy and foetal gastroschisis: A population-based cohort study.

Bo Young Park, Ian Boles, Samira Monavvari, Shivani Patel, Arriel Alvarez, Mie Phan, Maria Perez, Ruofan Yao

Abstract read
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In one paragraph

Article in Paediatric and perinatal epidemiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
5.9field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

17 citing papers in PubMed, 39 citations in OpenAlex.

  1. Wildland fire smoke and birth defects in California.Journal of exposure science & environmental epidemiology · 2026
    Article
  2. Review
  3. PMAir quality, atmosphere, & health · 2025
    Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Obstetric care for environmental migrants.Irish journal of medical science · 2024
    Review
  11. Article
  12. Review
  13. [The climate crisis as an ethical challenge].Wiener medizinische Wochenschrift (1946) · 2023
    Article
  14. The Alberta Congenital Anomalies Surveillance System: a 40-year review with prevalence and trends for selected congenital anomalies, 1997-2019.Health promotion and chronic disease prevention in Canada : research, policy and practice · 2023
    Article
  15. Review
  16. Wildfires in Pregnancy: Potential Threats to the Newborn.Paediatric and perinatal epidemiology · 2022
    Article
  17. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 2 countries.

Bo Young ParkDepartment of Public Health, California State University - Fullerton, Fullerton, CA, USA.ORCID https://orcid.org/0000-0002-3748-8041
Ian BolesCenter for Demographic Research, Fullerton, CA, USA.
Samira MonavvariDepartment of Obstetrics and Gynecology, Loma Linda University School of Medicine, Loma Linda, CA, USA.
Shivani PatelDepartment of Pediatrics, Loma Linda University School of Medicine, Loma Linda, CA, USA.
Arriel AlvarezDepartment of Public Health, California State University - Fullerton, Fullerton, CA, USA.
Mie PhanDepartment of Public Health, California State University - Fullerton, Fullerton, CA, USA.
Maria PerezSt. George's University School of Medicine, St George's, Grenada.
Ruofan YaoDepartment of Obstetrics and Gynecology, Loma Linda University School of Medicine, Loma Linda, CA, USA.
California State University, Fullerton · USLoma Linda University · USSt. George's University · GD

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundGlobal climate change has led to an increase in the prevalence and severity of wildfires. Pollutants released into air, soil and groundwater from wildfires may impact embryo development leading to gastroschisis.

objectiveThe objective of this study was to determine the association between wildfire exposure before and during pregnancy and the risk of foetal gastroschisis development.

methodsThis was a retrospective cohort study using The California Office of Statewide Health Planning and Development Linked Birth File linked to The California Department of Forestry and Fire Protection data between 2007 and 2010. Pregnancies complicated by foetal gastroschisis were identified by neonatal hospital discharge ICD-9 code. Pregnancies were considered exposed to wildfire if the mother's primary residence zip code was within 15 miles to the closest edge of a wildfire. The exposure was further stratified by trimester or if exposed within 30 days prior to pregnancy. Multivariable log-binomial regression analyses were performed to estimate the association between wildfire exposure in each pregnancy epoch and foetal gastroschisis.

resultsBetween 2007 and 2010, 844,348 (40%) births were exposed to wildfire in California. Compared with births without wildfire exposure, those with first-trimester exposure were associated with higher rates of gastroschisis, 7.8 vs. 5.7 per 10,000 births (adjusted relative risk [aRR] 1.28, 95% confidence interval [CI] 1.07, 1.54). Furthermore, those with prepregnancy wildfire exposure were also found to have higher rates of gastroschisis, 12.5 vs. 5.7 per 10,000 births, (aRR 2.17, 95% CI 1.42, 3.52). In contrast, second- and third-trimester wildfire exposures were not associated with foetal gastroschisis.

conclusionsWildfire exposure within 30 days before pregnancy was associated with more than two times higher risk of foetal gastroschisis, whereas a 28% higher risk was demonstrated if exposure was in the first trimester.

Indexed as

GastroschisisWildfiresCohort StudiesFemaleHumansInfant, NewbornPregnancyPregnancy TrimestersRetrospective Studiesenvironmental exposuregastroschisispregnancywildfire

Identifiers

PMID34797578
OpenAlexW3214621173

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.