Evidence map›Paper›PMID 30356011›Full record

ArticleInternational journal of environmental research and public health2018

Association between the Ratio of FEV₁ to FVC and the Exposure Level to Air Pollution in Neversmoking Adult Refractory Asthmatics Using Data Clustered by Patient in the Soonchunhyang Asthma Cohort Database.

Sol Yu, Sujung Park, Choon-Sik Park, Sungroul Kim

Open access · goldAbstract read
In one paragraph

Article in International journal of environmental research and public health, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.8field-weighted citation impact, top 27% 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

6 citing papers in PubMed, 17 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Impact of Air Pollution on Asthma Outcomes.International journal of environmental research and public health · 2020
    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

4 authors at 2 institutions in 1 country.

Sol YuDepartment of Environmental Sciences, Soonchunhyang University, Asan 31538, Korea. solsol0914@gmail.com.
Sujung ParkDepartment of Environmental Sciences, Soonchunhyang University, Asan 31538, Korea. psj57732398@gmail.com.
Choon-Sik ParkDepartment of Internal Medicine, Soonchunhyang Bocheon Hospital, Bucheon 22972, Korea. mdcspark@hanmail.net.
Sungroul KimDepartment of Environmental Sciences, Soonchunhyang University, Asan 31538, Korea. sungroul.kim@gmail.com.ORCID 0000-0001-8726-9288
Soonchunhyang University · KRBucheon University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Using real-world cases, asthma-related clinical data were clustered by patient; 5% of all asthmatics were found to have refractory asthma (RA) with a relatively low lung function (forced expiratory volume in 1 s/forced vital capacity (FEV₁/FVC) less than 80%). Using a multilevel study design for clustered spirometry data observed between 2005 and 2014, we evaluated the association between changes in the ratio of FEV₁ to FVC and variations in acute exposure to air pollution. We analyzed 2310 episodes of RA from 214 neversmoking patients. In spring, a 1 µg/m³ increase in concentration of particles ≤10 μm (PM

Indexed as

AdultAgedAir PollutionAsthmaCluster AnalysisCohort StudiesEnvironmental ExposureFemaleForced Expiratory VolumeHumansMaleMiddle AgedRepublic of KoreaSpirometryVital Capacityair pollutionFEV1FVCrefractory asthmaspirometry

Identifiers

PMID30356011
PMCPMC6266833
OpenAlexW2898552663

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.