Evidence map›Paper›PMID 35886328›Full record

ArticleInternational journal of environmental research and public health2022

Clustering of Environmental Parameters and the Risk of Acute Myocardial Infarction.

Geraldine P Y Koo, Huili Zheng, Pin Pin Pek, Fintan Hughes, Shir Lynn Lim, Jun Wei Yeo, Marcus E H Ong, Andrew F W Ho

Open access · goldAbstract read
In one paragraph

Article in International journal of environmental research and public health, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.6field-weighted citation impact, top 35% 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

4 citing papers in PubMed, 7 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Clustering of Environmental Parameters and the Risk of Acute Ischaemic Stroke.International journal of environmental research and public health · 2023
    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

8 authors at 6 institutions in 2 countries.

Geraldine P Y KooMinistry of Health Holdings, Singapore 099253, Singapore.
Huili ZhengNational Registry of Diseases Office, Health Promotion Board, Singapore 168937, Singapore.ORCID 0000-0002-3976-0088
Pin Pin PekHealth Services & Systems Research, Duke-NUS Medical School, Singapore 169857, Singapore.
Fintan HughesDepartment of Anesthesiology, Duke University Hospital, Duke University, Durham, NC 27710, USA.
Shir Lynn LimDepartment of Cardiology, National University Heart Centre Singapore, Singapore 119074, Singapore.ORCID 0000-0002-1151-2357
Jun Wei YeoYong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore.
Marcus E H OngHealth Services & Systems Research, Duke-NUS Medical School, Singapore 169857, Singapore.ORCID 0000-0001-7874-7612
Andrew F W HoDepartment of Emergency Medicine, Singapore General Hospital, Singapore 169608, Singapore.ORCID 0000-0003-4338-3876
National University of Singapore · SGSingapore General Hospital · SGDuke-NUS Medical School · SGDuke University Hospital · USHealth Promotion Board · SGMinistry of Health · SG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The association between days with similar environmental parameters and cardiovascular events is unknown. We investigate the association between clusters of environmental parameters and acute myocardial infarction (AMI) risk in Singapore. Using k-means clustering and conditional Poisson models, we grouped calendar days from 2010 to 2015 based on rainfall, temperature, wind speed and the Pollutant Standards Index (PSI) and compared the incidence rate ratios (IRR) of AMI across the clusters using a time-stratified case-crossover design. Three distinct clusters were formed with Cluster 1 having high wind speed, Cluster 2 high rainfall, and Cluster 3 high temperature and PSI. Compared to Cluster 1, Cluster 3 had a higher AMI incidence with IRR 1.04 (95% confidence interval 1.01-1.07), but no significant difference was found between Cluster 1 and Cluster 2. Subgroup analyses showed that increased AMI incidence was significant only among those with age ≥65, male, non-smokers, non-ST elevation AMI (NSTEMI), history of hyperlipidemia and no history of ischemic heart disease, diabetes or hypertension. In conclusion, we found that AMI incidence, especially NSTEMI, is likely to be higher on days with high temperature and PSI. These findings have public health implications for AMI prevention and emergency health services delivery during the seasonal Southeast Asian transboundary haze.

Indexed as

EnvironmentMyocardial InfarctionAgedCluster AnalysisHumansIncidenceMaleNon-ST Elevated Myocardial InfarctionRisk FactorsSingaporeair pollutionclusteringenvironmental epidemiologyhazemyocardial infarction

Identifiers

PMID35886328
PMCPMC9318360
OpenAlexW4285025808

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.