ArticleLancet regional health. Americas2022
Birth weight following pregnancy wildfire smoke exposure in more than 1.5 million newborns in Brazil: A nationwide case-control study.
Article in Lancet regional health. Americas, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 2 of them syntheses that pooled 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.
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.
Who cites it
16 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Health Impacts of Wildfire Smoke on Children and Adolescents: A Systematic Review and Meta-analysis.Current environmental health reports · 2024Pooled it
- Health Effects of Wildfire Smoke Exposure.Annual review of medicine · 2024Pooled it
- Prenatal exposure to wildfire fine particulate matter and fetal growth outcomes in the United States: Findings from the ECHO Cohort.Environmental epidemiology (Philadelphia, Pa.) · 2026Article
- Association between wildfire smoke exposure and pediatric emergency department visits for headache.Headache · 2026Article
- Prenatal Exposure to Wildfire and Autism in Children.Environmental science & technology · 2026Article
- Review
- Climate Change and Reproductive Health.Endocrine reviews · 2025Review
- The Camp fire and perinatal health: an example of the generalized synthetic control method to identify susceptible windows of exposure.American journal of epidemiology · 2025Article
- Scoping review of climate drivers on maternal health: current evidence and clinical implications.AJOG global reports · 2025Review
- Wildfire Smoke Exposure During Pregnancy: Consensus-Building to Co-Create a Community-Engaged Study.International journal of environmental research and public health · 2024Article
- Fires in Brazil: health crises and the failure of government action.Lancet regional health. Americas · 2024Article
- Unequal Effects of Wildfire Exposure on Infant Health by Maternal Education, 1995-2020.The Russell Sage Foundation journal of the social sciences : RSF · 2024Article
- "Air That Once Was Breath" Part 2: Wildfire Smoke and Airway Disease - "Climate Change, Allergy and Immunology" Special IAAI Article Collection: Collegium Internationale Allergologicum Update 2023.International archives of allergy and immunology · 2024Review
- Consequences of Natural and Man-made Disasters on Pregnancy Outcomes and Complications: A Systematic Review.Archives of academic emergency medicine · 2024Review
- Decreased birth weight after prenatal exposure to wildfires on the eastern coast of Korea in 2000.Epidemiology and health · 2023Article
- Birth Outcomes, Health, and Health Care Needs of Childbearing Women following Wildfire Disasters: An Integrative, State-of-the-Science Review.Environmental health perspectives · 2022Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background: Air pollution exposure has been associated with critical neonatal morbidities, including low birth weight (LBW). However, little is known on short-term exposure to wildfire smoke and LBW. In this study, we estimated the association between birth weight following pregnancy and wildfire smoke exposure in more than 1.5 million newborns in Brazil (considered as a very fire-prone region worldwide). Methods: We applied a logistic regression model to estimate the percent variation in newborns with low birth weight when exposed to wildfire in different trimesters of the pregnancy. Findings: After adjusting the model with relevant covariates, we found that an increase of 100 wildfire records in Brazil was associated with an increase in low birth weight in the Midwest region [0.98% (95%CI:0.34; 1.63)] and in the South region [18.55% (95%CI:13.66; 23.65)] when the exposure occurred in the first trimester of pregnancy. Interpretation: Wildfires were associated with LBW and this should be of public health concern for policymakers. Funding: Brazilian Agencies National Council for Scientific and Technological Development (CNPq); Ministry of Science, Technology and Innovation in Brazil (MCTI); and Novo Nordisk Foundation Challenge Programme.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.