Impacts of regional climate on the COVID-19 fatality in 88 countries

  1. Minneng Wen
  2. Liyuan Chen

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Abstract

The COVID-19 pandemic had led to 500000 confirmed death by June 30, 2020. We combined the number of monthly confirmed new cases and deaths with latitude, temperature, humidity, rainfall, and sunshine ultraviolet (UV) to explore the climate impacts on COVID-19 fatality in 88 countries. There was a significant decrease in overall case-fatality rate in May and June (from 8.17% to 4.99% and 3.22%). The fatality in temperate marine regions was the highest (11.13%). The fatality was 5.71% in high latitudes (≥30°) but only 3.73% in low latitudes (<30°). The fatality was 6.76% in cold regions (<20°C) but only 3.90% in hot regions (≥20°C). The fatality was 5.87% in rainy regions (≥40mm) but only 3.33% in rainless regions (<40mm). The fatality was 6.57% in cloudy regions (<50) but only 3.86% in sunny regions (≥50). Traveling to hot sunny regions without pollution is a strategy for risk reduction.

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  1. Version published to 10.1101/2020.06.13.20130013v6 on medRxiv
  2. Version published to 10.1101/2020.06.13.20130013v5 on medRxiv
  3. Version published to 10.1101/2020.06.13.20130013v4 on medRxiv
  4. Version published to 10.1101/2020.06.13.20130013v3 on medRxiv
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    SciScore for 10.1101/2020.06.13.20130013: (What is this?)

    Please note, not all rigor criteria are appropriate for all manuscripts.

    Table 1: Rigor

    Institutional Review Board Statementnot detected.
    Randomizationnot detected.
    Blindingnot detected.
    Power Analysisnot detected.
    Sex as a biological variablenot detected.

    Table 2: Resources

    Software and Algorithms
    SentencesResources
    Correlation and nonlinear regression analyses were performed with Stata software to estimate the impacts of the climate on the number of monthly confirmed new cases and deaths.
    Stata
    suggested: (Stata, RRID:SCR_012763)

    Results from OddPub: We did not detect open data. We also did not detect open code. Researchers are encouraged to share open data when possible (see Nature blog).

    Results from LimitationRecognizer: An explicit section about the limitations of the techniques employed in this study was not found. We encourage authors to address study limitations.

    Results from TrialIdentifier: No clinical trial numbers were referenced.

    Results from Barzooka: We did not find any issues relating to the usage of bar graphs.

    Results from JetFighter: We did not find any issues relating to colormaps.

    Results from rtransparent:
    • Thank you for including a conflict of interest statement. Authors are encouraged to include this statement when submitting to a journal.
    • Thank you for including a funding statement. Authors are encouraged to include this statement when submitting to a journal.
    • No protocol registration statement was detected.

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  7. Version published to 10.1101/2020.06.13.20130013v1 on medRxiv