Evidence map›Paper›PMID 34647628›Full record

ArticleJournal of medical virology2022

The occurrence of COVID-19 is associated with air quality and relative humidity.

Ling Tong, Lu Ji, Dan Li, Huihui Xu

Abstract read
In one paragraph

Article in Journal of medical virology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
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

2 citing papers in PubMed.

  1. Effects of fine particulate matter (PMCase studies in chemical and environmental engineering · 2023
    Article
  2. 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

4 authors.

Ling TongDivision of Health Risk Factors Monitoring and Control, Department of Environmental Health, Shanghai Municipal Center for Disease Control and Prevention/Shanghai Institutes of Preventive Medicine, Shanghai, China.
Lu JiDepartment of Infectious Diseases Monitoring and Control, Shanghai Yangpu Center for Disease Control and Prevention, Shanghai, China.
Dan LiDivision of Infectious Disease, Key Laboratory of Infectious Disease Surveillance and Ear-warning, Chinese Center for Disease Control and Prevention, Beijing, China.
Huihui XuDivision of Health Risk Factors Monitoring and Control, Department of Environmental Health, Shanghai Municipal Center for Disease Control and Prevention/Shanghai Institutes of Preventive Medicine, Shanghai, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The association between meteorological factors and COVID-19 is important for the prevention and control of COVID-19. However, similar studies are relatively rare in China. This study aims to investigate the association between COVID-19 and meteorological factors, such as average temperature, relative humidity, and air quality index (AQI), and average wind speed. We collected the daily confirmed cases of COVID-19 and meteorological factors in Shanghai China from January 10, 2020 to March 31, 2020. A generalized additive model was fitted to quantify the associations between meteorological factors and COVID-19 during the study period. A negative association between average temperature and daily confirmed cases of COVID-19 was found on lag 13 days. In addition, we observed a significant positive correlation between meteorological factors (AQI, relative humidity) and daily confirmed cases of COVID-19. A 10 increase in AQI (lag1/7/8/9/10 days) was correlated with a 4.2%-9.0% increase in the daily confirmed cases of COVID-19. A 1% increase in relative humidity (lag1/4/7/8/9/10 days) was correlated with 1.7%-3.7% increase in the daily confirmed cases of COVID-19. However, the associations between average wind speed and the daily confirmed cases of COVID-19 is complex in different lag days. In summary, meteorological factors could affect the occurrence of COVID-19. Reducing the effects of meteorological factors on COVID-19 may be an important public health action for the prevention and control of COVID-19.

Indexed as

Air PollutionCOVID-19ChinaHumansHumiditySARS-CoV-2TemperatureAQIaverage temperatureCOVID-19generalized additive modelrelative humiditytime series

Identifiers

PMID34647628
PMCPMC8661927

What OpenQuestion holds

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Registered trials

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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.