Evidence map›Paper›PMID 32755287›Full record

SynthesisAnnals of medicine2020

Characterisation of clinical, laboratory and imaging factors related to mild vs. severe covid-19 infection: a systematic review and meta-analysis.

Xiaomei Wu, Lei Liu, Jinghua Jiao, Lina Yang, Bo Zhu, Xin Li

Open access · greenAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Annals of medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 3 pooled it
0.8field-weighted citation impact, top 16% 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

14 citing papers in PubMed, 3 syntheses or guidelines pooled it, 34 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Article
  5. Article
  6. Article
  7. Several laboratory variables indicate severity and prognosis of COVID-19.The Journal of international medical research · 2024
    Article
  8. Article
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  11. Review
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  13. Biomarkers in COVID-19: An Up-To-Date Review.Frontiers in pediatrics · 2020
    Review
  14. 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

6 authors at 4 institutions in 1 country.

Xiaomei WuDepartment of Clinical Epidemiology and Center of Evidence Based Medicine, The First Hospital of China Medical University, Shenyang, China.
Lei LiuDepartment of Public Service, The First Affiliated Hospital of China Medical University, Shenyang, China.
Jinghua JiaoDepartment of Anesthesiology, Central Hospital, Shenyang Medical College, Shenyang, China.
Lina YangDepartment of Geriatrics, The First Affiliated Hospital of China Medical University, Shenyang, China.
Bo ZhuDepartment of Cancer Prevention and Treatment, Cancer Hospital of China Medical University/Liaoning Cancer Hospital & Institute, Shenyang, China.ORCID 0000-0002-1062-1295
Xin LiDepartment of Critical Care Medicine, The First Affiliated Hospital of China Medical University, Shenyang, China.
China Medical University · CNFirst Hospital of China Medical University · CNCentral Hospital Affiliated to Shenyang Medical College · CNLiaoning Cancer Hospital & Institute · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundEarly detection of disease progression associated with severe COVID-19, and access to proper medical care lowers fatality rates of severe cases. Currently, no studies had systematically examined the variables in detecting severe COVID-19.

methodSystematic searching of electronic databases identified observational studies which recruited participants with confirmed COVID-19 infection who were divided into different groups according to disease severity were identified.

resultsTo analysis 41 studies with 5064 patients were included.Patients who are elderly (SMD, 1.90; 95% CI, 1.01 to 2.8), male (OR, 1.71; 95% CI, 1.39 to 2.11) and have comorbidities or flu-like symptoms were significantly associated with the development to severe cases. Severe cases were associated with significant increased WBC (OR, 5.83; 95% CI, 2.76 to 12.32), CRP (OR, 3.62; 95% CI, 1.62 to 8.03), D-dimer (SMD, 1.69; 95% CI, 1.09 to 2.28), AST (OR, 4.64; 95% CI, 3.18 to 6.77) and LDH (OR, 7.94; 95% CI, 2.09 to 30.21). CT manifestation of bilateral lung involvement (OR, 4.55; 95% CI, 2.17 to 9.51) was associated with the severe cases.

Indexed as

Tomography, X-Ray ComputedAge FactorsCoronavirus InfectionsCOVID-19Disease ProgressionFemaleHumansLungMalePandemicsPneumonia, ViralRisk FactorsSex Factorsclinical characteristicsCOVID-19disease severitylaboratory indicatorsmeta-analysis

Identifiers

PMID32755287
PMCPMC7877997
OpenAlexW3047016927

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.