Evidence map›Paper›PMID 33527440›Full record

SynthesisJournal of medical virology2021

Gastroenterology manifestations and COVID-19 outcomes: A meta-analysis of 25,252 cohorts among the first and second waves.

Rami M Elshazli, Adam Kline, Abdelaziz Elgaml, Mohamed H Aboutaleb, Mohamed M Salim, Mahmoud Omar, Ruhul Munshi, Nicholas Mankowski, Mohammad H Hussein, Abdallah S Attia and 5 more

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Journal of medical virology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed, 3 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

41 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. A survey of SARS-CoV-2 tropism.Infectious diseases & immunity · 2025
    Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Gastrointestinal bleeding in patients with COVID-19: an integrative review.Revista do Colegio Brasileiro de Cirurgioes · 2024
    Review
  12. Article
  13. Article
  14. Review
  15. Article
  16. Review
  17. Gastrointestinal Bleeding in COVID-19-Infected Patients.Gastroenterology clinics of North America · 2023
    Review
  18. Review
  19. Review
  20. Diarrhea and Coronavirus Disease 2019 Infection.Gastroenterology clinics of North America · 2023
    Review
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

15 authors.

Rami M ElshazliDepartment of Biochemistry and Molecular Genetics, Faculty of Physical Therapy, Horus University - Egypt, New Damietta, Egypt.ORCID 0000-0002-3381-2641
Adam KlineSchool of Medicine, Tulane University, New Orleans, Louisiana, USA.ORCID 0000-0001-5939-2684
Abdelaziz ElgamlDepartment of Microbiology and Immunology, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt.ORCID 0000-0001-6790-5849
Mohamed H AboutalebDepartment of Pharmaceutical Chemistry, Faculty of Pharmacy, Horus University - Egypt, New Damietta, Egypt.ORCID 0000-0002-3954-5783
Mohamed M SalimDepartment of Pharmaceutical Chemistry, Faculty of Pharmacy, Horus University - Egypt, New Damietta, Egypt.ORCID 0000-0003-4429-6504
Mahmoud OmarDepartment of Surgery, School of Medicine, Tulane University, New Orleans, Louisiana, USA.ORCID 0000-0001-7917-7973
Ruhul MunshiDivision of Endocrine and Oncologic Surgery, Department of Surgery, School of Medicine, Tulane University, New Orleans, Louisiana, USA.ORCID 0000-0002-8616-6081
Nicholas MankowskiSchool of Medicine, Tulane University, New Orleans, Louisiana, USA.ORCID 0000-0002-2116-4747
Mohammad H HusseinDepartment of Surgery, School of Medicine, Tulane University, New Orleans, Louisiana, USA.ORCID 0000-0001-8278-7094
Abdallah S AttiaDepartment of Surgery, School of Medicine, Tulane University, New Orleans, Louisiana, USA.ORCID 0000-0003-2163-0637
Eman A ToraihDepartment of Surgery, School of Medicine, Tulane University, New Orleans, Louisiana, USA.ORCID 0000-0001-9267-3787
Ahmad SettinPediatrics and Genetics Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt.ORCID 0000-0003-4840-2327
Mary KillackeyDepartment of Surgery, School of Medicine, Tulane University, New Orleans, Louisiana, USA.ORCID 0000-0003-3546-6946
Manal S FawzyDepartment of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt.ORCID 0000-0003-1252-8403
Emad KandilDivision of Endocrine and Oncologic Surgery, Department of Surgery, School of Medicine, Tulane University, New Orleans, Louisiana, USA.ORCID 0000-0001-5895-4403

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A meta-analysis was performed to identify patients with coronavirus disease 2019 (COVID-19) presenting with gastrointestinal (GI) symptoms during the first and second pandemic waves and investigate their association with the disease outcomes. A systematic search in PubMed, Scopus, Web of Science, ScienceDirect, and EMBASE was performed up to July 25, 2020. The pooled prevalence of the GI presentations was estimated using the random-effects model. Pairwise comparison for the outcomes was performed according to the GI manifestations' presentation and the pandemic wave of infection. Data were reported as relative risk (RR), or odds ratio and 95% confidence interval. Of 125 articles with 25,252 patients, 20.3% presented with GI manifestations. Anorexia (19.9%), dysgeusia/ageusia (15.4%), diarrhea (13.2%), nausea (10.3%), and hematemesis (9.1%) were the most common. About 26.7% had confirmed positive fecal RNA, with persistent viral shedding for an average time of 19.2 days before being negative. Patients presenting with GI symptoms on admission showed a higher risk of complications, including acute respiratory distress syndrome (RR = 8.16), acute cardiac injury (RR = 5.36), and acute kidney injury (RR = 5.52), intensive care unit (ICU) admission (RR = 2.56), and mortality (RR = 2.01). Although not reach significant levels, subgroup-analysis revealed that affected cohorts in the first wave had a higher risk of being hospitalized, ventilated, ICU admitted, and expired. This meta-analysis suggests an association between GI symptoms in COVID-19 patients and unfavorable outcomes. The analysis also showed improved overall outcomes for COVID-19 patients during the second wave compared to the first wave of the outbreak.

Indexed as

COVID-19 Drug TreatmentAgeusiaAnorexiaCOVID-19Databases, FactualDiarrheaDysgeusiaFecesGastroenterologyHematemesisHospitalizationHumansNauseaPandemicsPrevalenceSARS-CoV-2COVID-19GITmeta-analysispandemicSARS-CoV-2

Identifiers

PMID33527440
PMCPMC8014082

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.