Evidence map›Paper›PMID 34445977›Full record

ArticleBMC public health2021

Fine particulate matter constituents associated with emergency room visits for pediatric asthma: a time-stratified case-crossover study in an urban area.

Yu-Ni Ho, Fu-Jen Cheng, Ming-Ta Tsai, Chih-Min Tsai, Po-Chun Chuang, Chi-Yung Cheng

Open access · goldAbstract read
In one paragraph

Article in BMC public health, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 2 pooled it
2.5field-weighted citation impact, top 11% 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

17 citing papers in PubMed, 2 syntheses or guidelines pooled it, 34 citations in OpenAlex.

  1. Pooled it
  2. Chemical constituents of PMEuropean journal of pediatrics · 2025
    Pooled it
  3. Article
  4. Article
  5. Article
  6. Article
  7. Observational
  8. Clinical and inflammatory features of traffic-related diesel exposure in children with asthma.Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology · 2024
    Article
  9. Ambient air pollution sensitivity and severity of pediatric asthma.Journal of exposure science & environmental epidemiology · 2024
    Article
  10. Article
  11. Article
  12. Article
  13. Association between Long-Term Ambient PM2.5 Exposure and under-5 Mortality: A Scoping Review.International journal of environmental research and public health · 2023
    Article
  14. Article
  15. Review
  16. Article
  17. 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

6 authors at 3 institutions in 1 country.

Yu-Ni HoDepartment of Emergency Medicine, Kaohsiung Chang Gung Memorial Hospital, No.123, Dapi Rd, Niao-Sung Dist, Kaohsiung City, 833, Taiwan.
Fu-Jen ChengDepartment of Emergency Medicine, Kaohsiung Chang Gung Memorial Hospital, No.123, Dapi Rd, Niao-Sung Dist, Kaohsiung City, 833, Taiwan. a0953283092@yahoo.com.tw.
Ming-Ta TsaiDepartment of Emergency Medicine, Kaohsiung Chang Gung Memorial Hospital, No.123, Dapi Rd, Niao-Sung Dist, Kaohsiung City, 833, Taiwan.
Chih-Min TsaiChang Gung University College of Medicine, No.259, Wenhua 1st Road, Guishan District, Taoyuan City, 333, Taiwan.
Po-Chun ChuangDepartment of Emergency Medicine, Kaohsiung Chang Gung Memorial Hospital, No.123, Dapi Rd, Niao-Sung Dist, Kaohsiung City, 833, Taiwan.
Chi-Yung ChengDepartment of Emergency Medicine, Kaohsiung Chang Gung Memorial Hospital, No.123, Dapi Rd, Niao-Sung Dist, Kaohsiung City, 833, Taiwan. qzsecawsxd@cgmh.org.tw.ORCID 0000-0002-1109-9339
Chang Gung University · TWChang Gung University of Science and Technology · TWNational Sun Yat-sen University · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundGlobal asthma-related mortality tallies at around 2.5 million annually. Although asthma may be triggered or exacerbated by particulate matter (PM) exposure, studies investigating the relationship of PM and its components with emergency department (ED) visits for pediatric asthma are limited. This study aimed to estimate the impact of short-term exposure to PM constituents on ED visits for pediatric asthma.

methodsWe retrospectively evaluated non-trauma patients aged younger than 17 years who visited the ED with a primary diagnosis of asthma. Further, measurements of PM with aerodynamic diameter of < 10 μm (PM

resultsOverall, 1597 patients were enrolled in our study. In the single-pollutant model, the estimated risk increase for pediatric asthma incidence on lag 3 were 14.7% [95% confidence interval (CI), 3.2-27.4%], 13.5% (95% CI, 3.3-24.6%), 14.8% (95% CI, 2.5-28.6%), and 19.8% (95% CI, 7.6-33.3%) per interquartile range increments in PM

conclusionsBoth PM

Indexed as

Air PollutantsAir PollutionAsthmaAgedChildCross-Over StudiesEmergency Service, HospitalEnvironmental ExposureHumansParticulate MatterRetrospective StudiesAir PollutantsParticulate MatterAir pollutionAsthmaComponentParticulate matterPediatric

Identifiers

PMID34445977
PMCPMC8393716
OpenAlexW3130080673

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.