Evidence map›Paper›PMID 32708986›Full record

ArticleHealthcare (Basel, Switzerland)2020

Factors Influencing Global Variations in COVID-19 Cases and Fatalities; A Review.

Osama Abu-Hammad, Ahmad Alnazzawi, Sary S Borzangy, Abdalla Abu-Hammad, Mostafa Fayad, Selma Saadaledin, Shaden Abu-Hammad, Najla Dar-Odeh

Abstract read
In one paragraph

Article in Healthcare (Basel, Switzerland), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 1 pooled it
–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

29 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
  3. Article
  4. Drivers of COVID-19 infections: Perspectives of managers in the Gauteng Department of Health, South Africa.South African family practice : official journal of the South African Academy of Family Practice/Primary Care · 2025
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Update on the omicron sub-variants BA.4 and BA.5.Reviews in medical virology · 2023
    Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. COVID-19 Infection in Academic Dental Hospital Personnel; A Cross-Sectional Survey in Saudi Arabia.International journal of environmental research and public health · 2021
    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

8 authors.

Osama Abu-HammadCollege of Dentistry, Taibah University, Al Madinah Al Munawara 43353, Saudi Arabia.
Ahmad AlnazzawiCollege of Dentistry, Taibah University, Al Madinah Al Munawara 43353, Saudi Arabia.ORCID 0000-0003-4041-4083
Sary S BorzangyCollege of Dentistry, Taibah University, Al Madinah Al Munawara 43353, Saudi Arabia.
Abdalla Abu-HammadSchool of Medicine, University of Jordan, Amman 11942, Jordan.
Mostafa FayadCollege of Dentistry, Taibah University, Al Madinah Al Munawara 43353, Saudi Arabia.ORCID 0000-0002-5516-0795
Selma SaadaledinSchulich School of Medicine and Dentistry, Western University, London, ON N6A 5C1, Canada.
Shaden Abu-HammadSchool of Dentistry, University of Jordan, Amman 11942, Jordan.
Najla Dar-OdehCollege of Dentistry, Taibah University, Al Madinah Al Munawara 43353, Saudi Arabia.ORCID 0000-0002-6577-2373

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Since the first cases of the novel corona virus disease (COVID-19) were diagnosed in China, outcomes associated with this infection in terms of total numbers of cases and deaths have varied widely between countries. While some countries had minimal rates of infections and deaths, other countries were hit hard by the pandemic. Countries with highest numbers of cases continued to change over time, but at the time of submission of this article they are: USA, Brazil, Russia, UK, India, Spain, Italy, Peru and Chile. This is in contrary to many countries in the Middle East, Far East, and Africa, which had lower cases or deaths/cases rates. This raised many questions pertaining to this variation. This overview explores the potential factors that contribute to spread, transmission and outcomes of the COVID-19 infection. It also uses an evidence-based approach in reviewing the available most recent literature that tackled the various factors that modify the populations' response to COVID-19, namely, factors pertaining to population characteristics, environmental and geographic factors.

Indexed as

ageCOVID-19geneticsgeographic factorssocial factors

Identifiers

PMID32708986
PMCPMC7551068

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.