Evidence map›Paper›PMID 35302989›Full record

ArticlePloS one2022

Is large-scale rapid CoV-2 testing a substitute for lockdowns?

Marc Diederichs, René Glawion, Peter G Kremsner, Timo Mitze, Gernot J Müller, Dominik Papies, Felix Schulz, Klaus Wälde

Open access · goldAbstract readComparative Study
In one paragraph

Article in PloS one, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.5field-weighted citation impact, top 38% 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

4 citing papers in PubMed, 5 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. 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

8 authors at 6 institutions in 4 countries.

Marc DiederichsJohannes Gutenberg University Mainz, Mainz, Germany.ORCID 0000-0001-7313-0138
René GlawionUniversity of Hamburg, Hamburg, Germany.
Peter G KremsnerUniversity of Tübingen, Tübingen, Germany.
Timo MitzeUniversity of Southern Denmark, Odense, Denmark.ORCID 0000-0003-3799-5200
Gernot J MüllerUniversity of Tübingen, Tübingen, Germany.
Dominik PapiesUniversity of Tübingen, Tübingen, Germany.
Felix SchulzJohannes Gutenberg University Mainz, Mainz, Germany.
Klaus WäldeJohannes Gutenberg University Mainz, Mainz, Germany.ORCID 0000-0001-5717-0383
Ifo Institute for Economic Research · DEJohannes Gutenberg University Mainz · DECentre de Recherche Médicales de Lambaréné · GAUniversität Hamburg · DEUniversity of Southern Denmark · DKUniversity of Tübingen · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundVarious forms of contact restrictions have been adopted in response to the Covid-19 pandemic. Around February 2021, rapid testing appeared as a new policy instrument. Some claim it may serve as a substitute for contact restrictions. We study the strength of this argument by evaluating the effects of a unique policy experiment: In March and April 2021, the city of Tübingen set up a testing scheme while relaxing contact restrictions.

methodsWe compare case rates in Tübingen county to an appropriately identified control unit. We employ the synthetic control method. We base interpretations of our findings on an extended SEIR model.

findingsThe experiment led to an increase in the reported case rate. This increase is robust across alternative statistical specifications. This is also due to more testing leading initially to more reported cases. An epidemiological model that corrects for 'more cases due to more testing' and 'reduced testing and reporting during the Easter holiday' confirms that the overall effect of the experiment led to more infections.

interpretationThe number of rapid tests were not sufficiently high in this experiment to compensate for more contacts and thereby infections caused by relaxing contact restrictions.

Indexed as

COVID-19COVID-19 TestingGermanyHumansMass ScreeningQuarantine

Identifiers

PMID35302989
PMCPMC8932588
OpenAlexW3198450380

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.