Evidence map›Paper›PMID 32961061›Full record

ArticleAnnals of clinical biochemistry2020

Performance verification of anti-SARS-CoV-2-specific antibody detection by using four chemiluminescence immunoassay systems.

Yafang Wan, Zhijie Li, Kun Wang, Tian Li, Pu Liao

Abstract read
In one paragraph

Article in Annals of clinical biochemistry, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 2 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

16 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Trial
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  10. Current state of diagnostic, screening and surveillance testing methods for COVID-19 from an analytical chemistry point of view.Microchemical journal : devoted to the application of microtechniques in all branches of science · 2021
    Article
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  16. COVID-19 diagnostic testing: Technology perspective.Clinical and translational medicine · 2020
    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.

Yafang WanDepartment of Clinical Laboratory, Chongqing General Hospital, Chongqing, China.ORCID 0000-0001-7786-1341
Zhijie LiDepartment of Clinical Laboratory, Chongqing General Hospital, Chongqing, China.
Kun WangDepartment of Clinical Laboratory, Chongqing General Hospital, Chongqing, China.
Tian LiDepartment of Clinical Laboratory, Chongqing General Hospital, Chongqing, China.
Pu LiaoDepartment of Clinical Laboratory, Chongqing General Hospital, Chongqing, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesThe purpose of the current study was to evaluate the analytical performance of seven kits for detecting IgM/IgG antibodies against coronavirus (SARS-CoV-2) by using four chemiluminescence immunoassay systems.

methodsFifty patients diagnosed with SARS-CoV-2 infection and 130 controls without coronavirus infection from the General Hospital of Chongqing were enrolled in the current retrospective study. Four chemiluminescence immunoassay systems, including seven IgM/IgG antibody detection kits for SARS-CoV-2 (A_IgM, A_IgG, B_IgM, B_IgG, C_IgM, C_IgG and D_Ab), were employed to detect antibody concentrations. The chi-square test, the receiver operating characteristic (ROC) curve and Youden's index were determined to verify the cut-off value of each detection system.

resultsThe repeatability verification results of the A, B, C and D systems are all qualified. D_Ab performed best (92% sensitivity and 99.23% specificity), and B_IgM performed worse than the other systems. Except for the A_IgM and C_IgG systems, the optimal diagnostic thresholds and cut-off values of the other kits and their recommendations are inconsistent with each other. B_IgM had the worst AUC, and C_IgG had the best diagnostic accuracy. More importantly, the B_IgG system had the highest false-positive rate for testing patients with AIDS, tumours and pregnancies. The A_IgM system test showed the highest false-positive rates among elderly individuals over 90 years old. COVID-2019 IgM/IgG antibody test systems exhibit performance differences.

conclusionsThe Innodx Biotech Total Antibody serum diagnosis kit is the most reliable detection system for anti-SARS-CoV-2 antibodies, which can be used together with nucleic acid tests as an alternative method for SARS-CoV-2 detecting.

Indexed as

Antibody SpecificityLuminescenceAntibodies, ViralBetacoronavirusFemaleHumansImmunoassayLimit of DetectionMaleMiddle AgedSARS-CoV-2Antibodies, Viralantibodychemiluminescence immunoassayCOVID-19performance verificationSARS-CoV-2

Identifiers

PMID32961061
PMCPMC7672672

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LicenceCC BY
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Registered trials

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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.