Evidence map›Paper›PMID 26864652›Full record

ArticleEnvironmental health : a global access science source2016

Risk estimates of mortality attributed to low concentrations of ambient fine particulate matter in the Canadian community health survey cohort.

Lauren Pinault, Michael Tjepkema, Daniel L Crouse, Scott Weichenthal, Aaron van Donkelaar, Randall V Martin, Michael Brauer, Hong Chen, Richard T Burnett

Open access · goldAbstract read
In one paragraph

Article in Environmental health : a global access science source, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 90 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
90citing papers in PubMed, 4 pooled it
16.3field-weighted citation impact, top 1% 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

90 citing papers in PubMed, 4 syntheses or guidelines pooled it, 208 citations in OpenAlex.

  1. Mortality and Morbidity Effects of Long-Term Exposure to Low-Level PMResearch report (Health Effects Institute) · 2021
    Pooled it
  2. Long-Term PMJournal of the American Heart Association · 2021
    Pooled it
  3. Pooled it
  4. Characteristics of cohort studies of long-term exposure to PMEnvironmental science and pollution research international · 2019
    Pooled it
  5. Health Economic Assessment of PMInternational journal of environmental research and public health · 2026
    Article
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  7. Article
  8. Article
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  14. Association between fine particulate matter (PMEnvironmental epidemiology (Philadelphia, Pa.) · 2024
    Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Article
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30 more citing papers are in PubMed but not listed here.

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 6 institutions in 2 countries.

Lauren PinaultHealth Analysis Division, Statistics Canada, 100 Tunney's Pasture Driveway, Ottawa, ON, K1A 0T6, Canada. Lauren.Pinault@canada.ca.
Michael TjepkemaHealth Analysis Division, Statistics Canada, 100 Tunney's Pasture Driveway, Ottawa, ON, K1A 0T6, Canada. Michael.Tjepkema@canada.ca.
Daniel L CrouseNew Brunswick Institute for Research, Data, and Training (NB-IRDT) and Department of Sociology, University of New Brunswick, Fredericton, NB, PO Box 4400, E3B 5A3, Canada. Dan.Crouse@unb.ca.
Scott WeichenthalAir Health Effects Science Division, Health Canada, 269 Laurier Avenue West, Ottawa, ON, K1A 0K9, Canada. Scott.Weichenthal@hc-sc.gc.ca.
Aaron van DonkelaarDepartment of Physics and Atmospheric Science, Dalhousie University, 6310 Coburg Road, Halifax, NS, Canada. Aaron.Van.Donkelaar@gmail.com.
Randall V MartinDepartment of Physics and Atmospheric Science, Dalhousie University, 6310 Coburg Road, Halifax, NS, Canada. Randall.Martin@dal.ca.
Michael BrauerFaculty of Medicine/School of Population and Public Health, University of British Columbia, 2206 East Mall, Vancouver, BC, V6T 1Z3, Canada. Michael.Brauer@ubc.ca.
Hong ChenPublic Health Ontario, Suite 300, 480 University Avenue, Toronto, ON, M5G 1V2, Canada. Hong.Chen@oahpp.ca.
Richard T BurnettEnvironmental Health Science and Research Bureau, Health Canada, 50 Columbine Driveway, Ottawa, ON, Canada. Rick.Burnett@hc-sc.gc.ca.
Dalhousie University · CAHealth Canada · CAStatistics Canada · CAPublic Health Ontario · CAUniversity of British Columbia · CAUniversity of New Brunswick · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundUnderstanding the shape of the relationship between long-term exposure to ambient fine particulate matter (PM2.5) concentrations and health risks is critical for health impact and risk assessment. Studies evaluating the health risks of exposure to low concentrations of PM2.5 are limited. Further, many existing studies lack individual-level information on potentially important behavioural confounding factors.

methodsA prospective cohort study was conducted among a subset of participants in a cohort that linked respondents of the Canadian Community Health Survey to mortality (n = 299,500) with satellite-derived ambient PM2.5 estimates. Participants enrolled between 2000 and 2008 were followed to date of death or December 31, 2011. Cox proportional hazards models were used to estimate hazard ratios (HRs) for mortality attributed to PM2.5 exposure, adjusted for individual-level and contextual covariates, including smoking behaviour and body mass index (BMI).

resultsApproximately 26,300 non-accidental deaths, of which 32.5 % were due to circulatory disease and 9.1 % were due to respiratory disease, occurred during the follow-up period. Ambient PM2.5 exposures were relatively low (mean = 6.3 μg/m(3)), yet each 10 μg/m(3) increase in exposure was associated with increased risks of non-accidental (HR = 1.26; 95 % CI: 1.19-1.34), circulatory disease (HR = 1.19; 95 % CI: 1.07-1.31), and respiratory disease mortality (HR = 1.52; 95 % CI: 1.26-1.84) in fully adjusted models. Higher hazard ratios were observed for respiratory mortality among respondents who never smoked (HR = 1.97; 95 % CI: 1.24-3.13 vs. HR = 1.45; 95 % CI: 1.17-1.79 for ever smokers), and among obese (BMI ≥ 30) respondents (HR = 1.76; 95 % CI: 1.15-2.69 vs. HR = 1.41; 95 % CI: 1.04-1.91 for normal weight respondents), though differences between groups were not statistically significant. A threshold analysis for non-accidental mortality estimated a threshold concentration of 0 μg/m(3) (+95 % CI = 4.5 μg/m(3)).

conclusionsIncreased risks of non-accidental, circulatory, and respiratory mortality were observed even at very low concentrations of ambient PM2.5. HRs were generally greater than most literature values, and adjusting for behavioural covariates served to reduce HR estimates slightly.

Indexed as

Air PollutantsAir PollutionCanadaCardiovascular DiseasesCohort StudiesDatabases, FactualEnvironmental ExposureHumansParticulate MatterProspective StudiesRespiratory Tract DiseasesRisk AssessmentStatistics as TopicTime FactorsAir PollutantsParticulate Matter

Identifiers

PMID26864652
PMCPMC4750218
OpenAlexW2257979315

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.