Evidence map›Paper›PMID 33737133›Full record

SynthesisInternational journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases2021

Serum amyloid A concentrations, COVID-19 severity and mortality: An updated systematic review and meta-analysis.

Angelo Zinellu, Panagiotis Paliogiannis, Ciriaco Carru, Arduino A Mangoni

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed, 4 pooled it
10.9field-weighted citation impact, top 1% 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

40 citing papers in PubMed, 4 syntheses or guidelines pooled it, 57 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
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  4. Pooled it
  5. Review
  6. Article
  7. Article
  8. Viral Prognosis Using Proteomics.Advances in experimental medicine and biology · 2026
    Review
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. New Regulatory roles for Human Serum Amyloid A.International journal of research in oncology · 2024
    Article
  16. IL-6 and SAA-Strong Predictors for the Outcome in COVID-19 CKD Patients.International journal of molecular sciences · 2023
    Article
  17. Review
  18. Article
  19. Review
  20. 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

4 authors at 2 institutions in 2 countries.

Angelo ZinelluDepartment of Biomedical Sciences, University of Sassari, Sassari, Italy.
Panagiotis PaliogiannisDepartment of Medical, Surgical and Experimental Sciences, University of Sassari, Sassari, Italy.
Ciriaco CarruDepartment of Biomedical Sciences, University of Sassari, Sassari, Italy; Quality Control Unit, University Hospital (AOUSS), Sassari, Italy.
Arduino A MangoniDiscipline of Clinical Pharmacology, College of Medicine and Public Health, Flinders University and Flinders Medical Centre, Adelaide, Australia. Electronic address: arduino.mangoni@flinders.edu.au.
University of Sassari · ITFlinders University · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

objectivesAn excessive inflammatory response in patients with coronavirus disease 2019 (COVID-19) is associated with high disease severity and mortality. Specific acute phase reactants might be useful for risk stratification. A systematic review and meta-analysis was conducted of studies on serum amyloid A (SAA) in patients with COVID-19.

methodsThe PubMed, Web of Science, and Scopus databases were searched, covering the period January 2020 to December 2020, for studies reporting SAA concentrations, COVID-19 severity, and survival status.

resultsNineteen studies involving 5617 COVID-19 patients were included in the meta-analysis. Pooled results showed that SAA concentrations were significantly higher in patients with severe disease and non-survivors (standard mean difference (SMD) 1.20, 95% confidence interval 0.91-1.49, P < 0.001). Extreme between-study heterogeneity was observed (I

conclusionsSAA concentrations were significantly and positively associated with higher COVID-19 severity and mortality. This acute phase reactant might assist with risk stratification and monitoring in this group.

Indexed as

Aspartate AminotransferasesCOVID-19HumansSARS-CoV-2Serum Amyloid A ProteinSeverity of Illness IndexAspartate AminotransferasesSerum Amyloid A ProteinCOVID-19Disease severityMortalitySerum amyloid A

Identifiers

PMID33737133
PMCPMC7959678
OpenAlexW3137930586

What OpenQuestion holds

Textmetadata
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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.