Evidence map›Paper›PMID 34162269›Full record

SynthesisInternational journal of immunopathology and pharmacology

Clinical features and corresponding immune function status of recurrent viral polymerase chain reaction positivity in patients with COVID-19 : A meta- analysis and systematic review.

Xingxiang Ren, Xiankun Wang, Ziruo Ge, Shuping Cui, Zhihai Chen

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in International journal of immunopathology and pharmacology. 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. 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

5 authors.

Xingxiang RenCenter of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, China.
Xiankun WangCenter of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, China.
Ziruo GeCenter of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, China.
Shuping CuiCenter of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, China.ORCID https://orcid.org/0000-0002-8997-9352
Zhihai ChenCenter of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, China.ORCID https://orcid.org/0000-0002-5140-1256

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionCoronavirus disease 2019 (COVID-19) was declared a global pandemic in March 2020. Since then, several studies have found COVID-19 patients with recurrent viral polymerase chain reaction (PCR) positivity.

methodsOn May 6, 2021, an exhaustive literature search of the Web of Science, PubMed, Cochrane Library, Chinese National Knowledge Infrastructure databases, Embase, Wan Fang Data, VIP database, Sinomed database, BioRxiv, MedRxiv, and Research Square was conducted to find describing the laboratory indicators of recurrent and non-recurrent viral PCR positivity in patients with COVID-19. The data were statistically analyzed using STATA version 15.0.

resultsIn total, 22 studies-comprising 5154 laboratory-confirmed COVID-19 cases-were included in the analyses. Patients with less severe COVID-19 illness (i.e. those clinically classified as mild or common-type) seemed to exhibit recurrent PCR positivity more commonly than patients with more severe illness (i.e. those classified as severe or critical). There were also significant differences between the two groups in terms of the rates of headaches and dizziness, in addition to the levels of aspartate aminotransferase, C reactive protein, interleukin-6, and lactate dehydrogenase. Further, there were variations in the ratio of CD4+ T cells/CD8+ T cells on admission to the hospital.

conclusionIn comparison to COVID-19 patients with non-recurrent viral PCR positivity, patients with recurrent virus PCR positivity seem to experience more severe immune function suppression upon hospital admission.

Indexed as

COVID-19COVID-19 TestingHumansImmunity, CellularPolymerase Chain ReactionRecurrenceclinical featuresCOVID-19immune function statusmeta-analysisrecurrent viral positivity

Identifiers

PMID34162269
PMCPMC8236784

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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.