Evidence map›Paper›PMID 34486257›Full record

ArticleAllergy, asthma & immunology research2021

The Effect of Particulate Matter Reduction by Indoor Air Filter Use on Respiratory Symptoms and Lung Function: A Systematic Review and Meta-analysis.

Hyung Jun Park, Ho Young Lee, Chong Hyun Suh, Ho Cheol Kim, Hwan Cheol Kim, Young-Jun Park, Sei Won Lee

Open access · diamondAbstract read
In one paragraph

Article in Allergy, asthma & immunology research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
2.9field-weighted citation impact, top 9% 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

8 citing papers in PubMed, 33 citations in OpenAlex.

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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

7 authors at 3 institutions in 1 country.

Hyung Jun ParkDepartment of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.ORCID https://orcid.org/0000-0002-5523-5144
Ho Young LeeDivision of Pulmonary Allergy and Critical Care Medicine, Department of Internal Medicine, Busan Paik Hospital, Inje University College of Medicine, Busan, Korea.ORCID https://orcid.org/0000-0001-7976-3753
Chong Hyun SuhDepartment of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.ORCID https://orcid.org/0000-0002-4737-0530
Ho Cheol KimDepartment of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.ORCID https://orcid.org/0000-0002-3154-4858
Hwan Cheol KimDepartment of Occupational and Environmental Medicine, College of Medicine, Inha University, Incheon, Korea.ORCID https://orcid.org/0000-0002-3635-1297
Young-Jun ParkKorea Research Institute of Bioscience and Biotechnology, Daejeon, Korea.ORCID https://orcid.org/0000-0002-9958-3976
Sei Won LeeDepartment of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea. seiwon@amc.seoul.kr.ORCID https://orcid.org/0000-0003-4814-6730
Ulsan College · KRInje University Busan Paik Hospital · KRKorea Research Institute of Bioscience and Biotechnology · KR

Funding

Korea Centers for Disease Control and Prevention 2019ER671100Korea Research Institute of Bioscience and Biotechnology
6 · The paper itself

Abstract

purposeExposure to particulate matter (PM) is a key public health issue, but effective intervention has not yet been established. A systematic literature review and meta-analysis has been conducted to assess the relationship between the use of air filters, one of the most commonly studied interventions, and respiratory outcomes in patients with chronic respiratory diseases.

methodsWe systematically reviewed intervention studies on PM using PubMed, EMBASE, and Cochrane databases up to September 2019. Studies that included data on PM concentration changes and respiratory symptoms or lung function in patients with respiratory diseases were eligible for inclusion. Effect estimates were quantified separately using the random-effects model.

resultsSix studies were included in the quantitative analysis. Air filter use reduced indoor PM2.5 by 11.45 µg/m

conclusionsThe findings of this systematic review suggest that air filters may reduce indoor PM and increase peak expiratory rate in asthmatic patients. However, most studies showed no significant effects of air filters on respiratory symptoms or FEV1. Further studies in regions with high-density PM may provide additional information on this issue.

trial registrationPROSPERO Identifier: CRD42020156258.

Indexed as

air filtersair pollution, indoorasthmaforced expiratory volumeParticulate matterpeak expiratory flow ratepulmonary disease, chronic obstructive

Identifiers

PMID34486257
PMCPMC8419638
OpenAlexW3118095372

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.