SynthesisInternational journal of environmental research and public health2019
Meta-Analysis of Heterogeneity in the Effects of Wildfire Smoke Exposure on Respiratory Health in North America.
Synthesis in International journal of environmental research and public health, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 2 of them syntheses that pooled it.
What it found
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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
35 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- The effect of flooding on low birthweight and preterm birth: a systematic review and meta-analysis.BMC public health · 2026Pooled it
- Health Impacts of Wildfire Smoke on Children and Adolescents: A Systematic Review and Meta-analysis.Current environmental health reports · 2024Pooled it
- The effect of wildfire air pollution on local hospital admissions in New York.Environmental research communications · 2026Article
- Wildfire smoke-related PMEnvironment international · 2026Article
- Wildfire-Specific PMGeoHealth · 2026Article
- Impact of Wildfire Smoke on Respiratory Disease Associated Healthcare Utilization in Gang-Won Province, South Korea, in 2017.GeoHealth · 2026Article
- Wildfire and asthma - The prospective interventions.The World Allergy Organization journal · 2025Review
- Fine Particulate Matter From 2020 California Wildfires and Mental Health-Related Emergency Department Visits.JAMA network open · 2025Article
- Applying a two-stage generalized synthetic control approach to quantify the heterogeneous health effects of extreme weather events: A 2018 large wildfire in California event as a case study.Environmental epidemiology (Philadelphia, Pa.) · 2025Article
- Impacts of wildfire-season air quality on park and playground visitation in the Northwest United States.Ecological economics : the journal of the International Society for Ecological Economics · 2024Article
- Long-term exposure to wildland fire smoke PMProceedings of the National Academy of Sciences of the United States of America · 2024Article
- Long-term exposure to wildland fire smoke PMmedRxiv : the preprint server for health sciences · 2024Article
- Wildfires are associated with increased emergency department visits for anxiety disorders in the western United States.Nature. Mental health · 2024Article
- Article
- Smoke on the horizon: leveling up citizen and social science to motivate health protective responses during wildfires.Humanities & social sciences communications · 2024Article
- Clearing the Air: Understanding the Impact of Wildfire Smoke on Asthma and COPD.Healthcare (Basel, Switzerland) · 2024Review
- Association of perceived neighborhood air quality problems with attempt to quit cigarette smoking: a cross-sectional study in Texas.Frontiers in public health · 2024Article
- Article
- Acute Health Effects of Wildfire Smoke Exposure During a Compound Event: A Case-Crossover Study of the 2016 Great Smoky Mountain Wildfires.GeoHealth · 2023Article
- Effect modification of the association between fine particulate air pollution during a wildfire event and respiratory health by area-level measures of socio-economic status, race/ethnicity, and smoking prevalence.Environmental research, health : ERH · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Epidemiological studies consistently show an association between wildfire-related smoke exposure and adverse respiratory health. We conducted a systematic review of evidence in published literature pertaining to heterogeneity of respiratory effects from this exposure in North America. We calculated the within-study ratio of relative risks (RRR) and 95% confidence intervals (CI) to examine heterogeneity of effect by population subgroup, and then summarized the RRRs using meta-analysis. We found evidence of a greater effect of wildfire smoke on respiratory health among females relative to males for asthma (RRR: 1.035, 95% CI: 1.013, 1.057) and chronic obstructive pulmonary disease (RRR: 1.018, 95% CI: 1.003, 1.032). There was evidence of a lower relative risk for all respiratory outcomes among youth compared to adults (RRR: 0.976, 95% CI: 0.963, 0.989). We also found wildfire smoke effects stratified by income, race, education, health behaviors, access to care, housing occupancy, geographic region, and urban/rural status. However, data were insufficient to quantitatively evaluate effect modification by these characteristics. While we found evidence that certain demographic subgroups of the population are more susceptible to respiratory health outcomes from wildfire smoke, it is unclear whether this information can be used to inform policy aimed to reduce health impact of wildfires.
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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.