Evidence map›Paper›PMID 28177951›Full record

ArticleEpidemiology (Cambridge, Mass.)2017

Biomass Burning as a Source of Ambient Fine Particulate Air Pollution and Acute Myocardial Infarction.

Scott Weichenthal, Ryan Kulka, Eric Lavigne, David van Rijswijk, Michael Brauer, Paul J Villeneuve, Dave Stieb, Lawrence Joseph, Rick T Burnett

Open access · hybridAbstract read
In one paragraph

Article in Epidemiology (Cambridge, Mass.), 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 1 pooled it
4.5field-weighted citation impact, top 5% 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

27 citing papers in PubMed, 1 synthesis or guideline pooled it, 83 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Review
  4. Article
  5. Review
  6. Article
  7. Review
  8. Wildfires and Older Adults: A Scoping Review of Impacts, Risks, and Interventions.International journal of environmental research and public health · 2023
    Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Housing conditions and respiratory morbidity in Indigenous children in remote communities in Northwestern Ontario, Canada.CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2022
    Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 1 institution in 1 country.

Scott WeichenthalFrom the aDepartment of Epidemiology, Biostatistics, and Occupational Health, McGill University, Montreal, QC, Canada; bHealth Canada, Air Health Science Division, Ottawa, ON, Canada; cDepartment of Epidemiology, Public Health and Preventive Medicine, University of Ottawa, Ottawa, ON, Canada; dUniversity of British Columbia, Vancouver, BC, Canada; eDepartment of Health Sciences, School of Mathematics and Statistics, Carleton University, Ottawa, ON, Canada; and fHealth Canada, Population Studies Division, Ottawa, ON, Canada.
Ryan Kulka
Eric Lavigne
David van Rijswijk
Michael Brauer
Paul J Villeneuve
Dave Stieb
Lawrence Joseph
Rick T Burnett
Health Canada · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundBiomass burning is an important source of ambient fine particulate air pollution (PM2.5) in many regions of the world.

methodsWe conducted a time-stratified case-crossover study of ambient PM2.5 and hospital admissions for myocardial infarction (MI) in three regions of British Columbia, Canada. Daily hospital admission data were collected between 2008 and 2015 and PM2.5 data were collected from fixed site monitors. We used conditional logistic regression models to estimate odds ratios (ORs) describing the association between PM2.5 and the risk of hospital admission for MI. We used stratified analyses to evaluate effect modification by biomass burning as a source of ambient PM2.5 using the ratio of levoglucosan/PM2.5 mass concentrations.

resultsEach 5 µg/m increase in 3-day mean PM2.5 was associated with an increased risk of MI among elderly subjects (≥65 years; OR = 1.06, 95% CI: 1.03, 1.08); risk was not increased among younger subjects. Among the elderly, the strongest association occurred during colder periods (<6.44°C); when we stratified analyses by tertiles of monthly mean biomass contributions to PM2.5 during cold periods, ORs of 1.19 (95% CI: 1.04, 1.36), 1.08 (95% CI: 1.06, 1.09), and 1.04 (95% CI: 1.03, 1.06) were observed in the upper, middle, and lower tertiles (Ptrend = 0.003), respectively.

conclusionShort-term changes in ambient PM2.5 were associated with an increased risk of MI among elderly subjects. During cold periods, increased biomass burning contributions to PM2.5 may modify its association with MI.

Indexed as

BiomassParticulate MatterAgedAir PollutionBritish ColumbiaCase-Control StudiesFemaleGlucoseHumansLinear ModelsLogistic ModelsMaleMiddle AgedMyocardial InfarctionOdds RatioRisk Factors1,6-anhydro-beta-glucopyranoseGlucoseParticulate Matter

Identifiers

PMID28177951
PMCPMC5389593
OpenAlexW2586813007

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.