Evidence map›Paper›PMID 31112443›Full record

ArticleJournal of the American Heart Association2019

Time-Stratified Case Crossover Study of the Association of Outdoor Ambient Air Pollution With the Risk of Acute Myocardial Infarction in the Context of Seasonal Exposure to the Southeast Asian Haze Problem.

Andrew Fu Wah Ho, Huili Zheng, Arul Earnest, Kang Hao Cheong, Pin Pin Pek, Jeon Young Seok, Nan Liu, Yu Heng Kwan, Jack Wei Chieh Tan, Ting Hway Wong and 4 more

Abstract readMulticenter Study
In one paragraph

Article in Journal of the American Heart Association, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing 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

22 citing papers in PubMed.

  1. Article
  2. Article
  3. Environmental drivers of vertigo.Environmental health and preventive medicine · 2026
    Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Bayesian Approach to Disease Risk Evaluation Based on Air Pollution and Weather Conditions.International journal of environmental research and public health · 2023
    Article
  10. Ambient Air Quality and Emergency Hospital Admissions in Singapore: A Time-Series Analysis.International journal of environmental research and public health · 2022
    Article
  11. Article
  12. Article
  13. Article
  14. Observational
  15. Article
  16. Article
  17. Article
  18. Observational
  19. Air-Pollution Control in an Emergent Market: Does It Work? Evidence from Romania.International journal of environmental research and public health · 2020
    Article
  20. Acute Health Impacts of the Southeast Asian Transboundary Haze Problem-A Review.International journal of environmental research and public health · 2019
    Review
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

14 authors.

Andrew Fu Wah Ho1 SingHealth Duke-NUS Emergency Medicine Academic Clinical Programme Singapore.
Huili Zheng6 National Registry of Diseases Office Health Promotion Board Singapore.
Arul Earnest7 Department of Epidemiology and Preventive Medicine School of Public Health and Preventive Medicine Monash University Melbourne Victoria Australia.
Kang Hao Cheong8 Engineering Cluster Singapore Institute of Technology Singapore.
Pin Pin Pek4 Department of Emergency Medicine Singapore General Hospital Singapore.
Jeon Young Seok10 Saw Swee Hock School of Public Health National University of Singapore Singapore.
Nan Liu11 Health Services Research Centre Singapore Health Services Singapore.
Yu Heng Kwan13 Program in Health Services and Systems Research Duke-NUS Medical School Singapore.
Jack Wei Chieh Tan14 Department of Cardiology National Heart Centre Singapore Singapore.
Ting Hway Wong5 Department of General Surgery Singapore General Hospital Singapore.
Derek J Hausenloy3 Cardiovascular & Metabolic Disorders Program Duke-National University of Singapore Medical School Singapore.
Ling Li Foo6 National Registry of Diseases Office Health Promotion Board Singapore.
Benjamin Yong Qiang Tan20 Division of Neurology Department of Medicine National University Health System Singapore.
Marcus Eng Hock Ong4 Department of Emergency Medicine Singapore General Hospital Singapore.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background Prior studies have demonstrated the association of air pollution with cardiovascular deaths. Singapore experiences seasonal transboundary haze. We investigated the association between air pollution and acute myocardial infarction ( AMI ) incidence in Singapore. Methods and Results We performed a time-stratified case-crossover study on all AMI cases in the Singapore Myocardial Infarction Registry (2010-2015). Exposure on days where AMI occurred (case days) were compared with the exposure on days where AMI did not occur (control days). Control days were chosen on the same day of the week earlier and later in the same month and year. We fitted conditional Poisson regression models to daily AMI incidence to include confounders such as ambient temperature, rainfall, wind-speed, and Pollutant Standards Index. We assessed relationships between AMI incidence and Pollutant Standards Index in the entire cohort and subgroups of individual-level characteristics. There were 53 948 cases. Each 30-unit increase in Pollutant Standards Index was association with AMI incidence (incidence risk ratio [ IRR ] 1.04, 95% CI 1.03-1.06). In the subgroup of ST -segment-elevation myocardial infarction the IRR was 1.00, 95% CI 0.98 to 1.03, while for non-ST-segment-elevation myocardial infarction, the IRR was 1.08, 95% CI 1.05 to 1.10. Subgroup analyses showed generally significant. Moderate/unhealthy Pollutant Standards Index showed association with AMI occurrence with IRR 1.08, 95% CI 1.05 to 1.11 and IRR 1.09, 95% CI 1.01 to 1.18, respectively. Excess risk remained elevated through the day of exposure and for >2 years after. Conclusions We found an effect of short-term air pollution on AMI incidence, especially non-ST-segment-elevation myocardial infarction and inpatient AMI . These findings have public health implications for primary prevention and emergency health services during haze.

Indexed as

RegistriesAgedAir PollutionCross-Over StudiesFemaleFollow-Up StudiesHumansIncidenceMaleMiddle AgedMyocardial InfarctionParticulate MatterRetrospective StudiesRisk AssessmentSeasonsSingaporeParticulate Matterair pollutionhazemyocardial infarctionpopulationSingapore

Identifiers

PMID31112443
PMCPMC6475051

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.