Evidence map›Paper›PMID 32800895›Full record

ArticleEnvironmental research2020

Impact of climate and ambient air pollution on the epidemic growth during COVID-19 outbreak in Japan.

Kenichi Azuma, Naoki Kagi, Hoon Kim, Motoya Hayashi

Open access · greenAbstract read
In one paragraph

Article in Environmental research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 65 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
65citing papers in PubMed, 3 pooled it
3.8field-weighted citation impact, top 5% 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

65 citing papers in PubMed, 3 syntheses or guidelines pooled it, 116 citations in OpenAlex.

  1. Pooled it
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  6. Review
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  12. Observational
  13. Ecosystem degradation and the spread of Covid-19.Environmental monitoring and assessment · 2023
    Review
  14. Article
  15. Article
  16. Review
  17. Air pollution and respiratory infections: the past, present, and future.Toxicological sciences : an official journal of the Society of Toxicology · 2023
    Review
  18. Article
  19. Article
  20. Article

5 more citing papers are in PubMed but not listed here.

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 4 institutions in 1 country.

Kenichi AzumaDepartment of Environmental Medicine and Behavioral Science, Kindai University Faculty of Medicine, Osakasayama, 589-8511, Japan. Electronic address: kenazuma@med.kindai.ac.jp.
Naoki KagiDepartment of Architecture and Building Engineering, School of Environment and Society, Tokyo Institute of Technology, Tokyo, 152-8550, Japan. Electronic address: kagi.n.aa@m.titech.ac.jp.
Hoon KimDepartment of Environmental Health, National Institute of Public Health, Wako, 351-0197, Japan. Electronic address: kim.h.aa@niph.go.jp.
Motoya HayashiLaboratory of Environmental Space Design, Division of Architecture, Faculty of Engineering, Hokkaido University, Sapporo, 060-6826, Japan. Electronic address: Motoya.Hayashi@eng.hokudai.ac.jp.
Kindai University · JPNational Institute of Public Health · JPSapporo University · JPTokyo Institute of Technology · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Coronavirus disease 2019 (COVID-19) rapidly spread worldwide in the first quarter of 2020 and resulted in a global crisis. Investigation of the potential association of the spread of the COVID-19 infection with climate or ambient air pollution could lead to the development of preventive strategies for disease control. To examine this association, we conducted a longitudinal cohort study of 28 geographical areas of Japan with documented outbreaks of COVID-19. We analyzed data obtained from March 13 to April 6, 2020, before the Japanese government declared a state of emergency. The results revealed that the epidemic growth of COVID-19 was significantly associated with increase in daily temperature or sunshine hours. This suggests that an increase in person-to-person contact due to increased outing activities on a warm and/or sunny day might promote the transmission of COVID-19. Our results also suggested that short-term exposure to suspended particles might influence respiratory infections caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Further research by well-designed or well-controlled study models is required to ascertain this effect. Our findings suggest that weather has an indirect role in the transmission of COVID-19 and that daily adequate preventive behavior decreases the transmission.

Indexed as

Activities of Daily LivingAir PollutionClimateCoronavirusCoronavirus InfectionsPandemicsPneumonia, ViralBetacoronavirusCOVID-19Disease OutbreaksFemaleHumansJapanLongitudinal StudiesMaleSARS-CoV-2COVID-19Epidemic growthParticulate matterSunshineTemperature

Identifiers

PMID32800895
PMCPMC7420955
OpenAlexW3048527374

What OpenQuestion holds

Textmetadata
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.