Evidence map›Paper›PMID 33970430›Full record

ArticleInfection2021

Self-sampling versus health care professional-guided swab collection for SARS-CoV-2 testing.

Silvia Würstle, Christoph D Spinner, Florian Voit, Dieter Hoffmann, Svenja Hering, Simon Weidlich, Jochen Schneider, Alexander Zink, Matthias Treiber, Roman Iakoubov and 3 more

Registry-linked trialAbstract read
In one paragraph

Article in Infection, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05209178 (Diagnostic Accuracy of Self-collected Versus Healthcare Collected Anterior Nose Swabs for SARS-CoV-2 Detection - a Randomized Controlled Trial.), which is not on this 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.

NCT05209178 nacompletednot on this mapstarted 2022, after this paper: background citation

Diagnostic Accuracy of Self-collected Versus Healthcare Collected Anterior Nose Swabs for SARS-CoV-2 Detection - a Randomized Controlled Trial.

TypeinterventionalSponsorRigshospitalet, DenmarkRan2022 to 2022Enrolled3,070ConditionsCOVID-19 PandemicArmsCollection of nasal and oropharyngeal specimen for COVID19 antigen test
3 · Its place in the literature

Who cites it

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

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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

13 authors.

Silvia WürstleDepartment of Internal Medicine II, School of Medicine, University Hospital Rechts der Isar, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany.ORCID http://orcid.org/0000-0003-0787-3894
Christoph D SpinnerDepartment of Internal Medicine II, School of Medicine, University Hospital Rechts der Isar, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany. christoph.spinner@tum.de.ORCID http://orcid.org/0000-0002-3875-5367
Florian VoitDepartment of Internal Medicine II, School of Medicine, University Hospital Rechts der Isar, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany.ORCID http://orcid.org/0000-0002-6957-6628
Dieter HoffmannInstitute of Virology, School of Medicine, Technical University of Munich/Helmholtz Zentrum München, Munich, Germany.ORCID http://orcid.org/0000-0003-3566-3341
Svenja HeringInstitute of Virology, School of Medicine, Technical University of Munich/Helmholtz Zentrum München, Munich, Germany.
Simon WeidlichDepartment of Internal Medicine II, School of Medicine, University Hospital Rechts der Isar, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany.
Jochen SchneiderDepartment of Internal Medicine II, School of Medicine, University Hospital Rechts der Isar, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany.ORCID http://orcid.org/0000-0002-0300-0159
Alexander ZinkDepartment of Dermatology and Allergology, School of Medicine, University Hospital Rechts der Isar, Technical University of Munich, Munich, Germany.ORCID http://orcid.org/0000-0001-9313-6588
Matthias TreiberDepartment of Internal Medicine II, School of Medicine, University Hospital Rechts der Isar, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany.
Roman IakoubovDepartment of Internal Medicine II, School of Medicine, University Hospital Rechts der Isar, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany.
Roland M SchmidDepartment of Internal Medicine II, School of Medicine, University Hospital Rechts der Isar, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany.
Ulrike ProtzerGerman Center for Infection Research (DZIF), Partner Site Munich, Munich, Germany.ORCID http://orcid.org/0000-0002-9421-1911
Johanna ErberDepartment of Internal Medicine II, School of Medicine, University Hospital Rechts der Isar, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany.ORCID http://orcid.org/0000-0001-6614-6051

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo evaluate the diagnostic reliability and practicability of self-collected oropharyngeal swab samples for the detection of SARS-CoV-2 infection as self-sampling could enable broader testing availability and reduce both personal protective equipment and potential exposure.

methodsHospitalized SARS-CoV-2-infected patients were asked to collect two oropharyngeal swabs (SC-OPS1/2), and an additional oropharyngeal swab was collected by a health care professional (HCP-OPS). SARS-CoV-2 PCR testing for samples from 58 participants was performed, with a 48-h delay in half of the self-collected samples (SC-OPS2). The sensitivity, probability of concordance, and interrater reliability were calculated. Univariate and multivariate analyses were performed to assess predictive factors. Practicability was evaluated through a questionnaire.

resultsThe test sensitivity for HCP-OPS, SC-OPS1, and SC-OPS2 was 88%, 78%, and 77%, respectively. Combining both SC-OPS results increased the estimated sensitivity to 88%. The concordance probability between HCP-OPS and SC-OPS1 was 77.6% and 82.5% between SC-OPS1 and SC-OPS2, respectively. Of the participants, 69% affirmed performing future self-sampling at home, and 34% preferred self-sampling over HCP-guided testing. Participants with both positive HCP-OPS1 and SC-OPS1 indicating no challenges during self-sampling had more differences in viral load levels between HCP-OPS1 and SC-OPS1 than those who indicated challenges. Increasing disease duration and the presence of anti-SARS-CoV-2-IgG correlated with negative test results in self-collected samples of previously confirmed SARS-CoV-2 positive individuals.

conclusionOropharyngeal self-sampling is an applicable testing approach for SARS-CoV-2 diagnostics. Self-sampling tends to be more effective in early versus late infection and symptom onset, and the collection of two distinct samples is recommended to maintain high test sensitivity.

Indexed as

COVID-19SARS-CoV-2COVID-19 TestingHealth PersonnelHumansReproducibility of ResultsCOVID-19OropharyngealSARS-CoV-2Self-samplingSwab

Identifiers

PMID33970430
PMCPMC8107404

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Registered trials

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.