Evidence map›Paper›PMID 32518729›Full record

ArticlePeerJ2020

Acute effects of air pollution on all-cause mortality: a natural experiment from haze control measures in Chiang Mai Province, Thailand.

Nitaya Vajanapoom, Patcharee Kooncumchoo, Thuan-Quoc Thach

Abstract read
In one paragraph

Article in PeerJ, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
–field-weighted citation impact
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

5 citing papers in PubMed.

  1. The Effect of Fine (PMJournal of clinical medicine · 2026
    Article
  2. Exposure to seasonal PMInternational archives of occupational and environmental health · 2025
    Article
  3. Article
  4. Article
  5. 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

3 authors.

Nitaya VajanapoomCenter of Excellence in Global Health, Faculty of Public Health, Thammasat University, Pathumtani, Thailand.
Patcharee KooncumchooFaculty of Allied Health Sciences, Thammasat University, Pathumtani, Thailand.
Thuan-Quoc ThachSchool of Public Health, The University of Hong Kong, Hong Kong, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSerious haze episodes have been a seasonal event in Chiang Mai province for more than a decade. In 2008, local government agencies introduced comprehensive measures to control haze and limit its impacts on public health. This study assessed the acute effects of ambient air pollutants on all-cause mortality before and after the introduction of those haze control measures.

methodsWe obtained daily mortality counts and data on mass concentrations of particulate matter <10 micron in aerodynamic diameter (PM

resultsWe found decreased PM

conclusionsThe findings indicate that the government haze control measures first introduced in Chiang Mai province in 2008 have successfully reduced episodic PM

Indexed as

Air pollutionBiomass burningHaze controlHaze smokeHealth effectsMortalityParticulate matter

Identifiers

PMID32518729
PMCPMC7261137

What OpenQuestion holds

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LicenceCC BY
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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.