Evidence map›Paper›PMID 33250657›Full record

ArticleAtmospheric environment (Oxford, England : 1994)2021

COVID-19 mitigation measures and nitrogen dioxide - A quasi-experimental study of air quality in Munich, Germany.

Jacob Burns, Sabine Hoffmann, Christoph Kurz, Michael Laxy, Stephanie Polus, Eva Rehfuess

Open access · hybridAbstract read
In one paragraph

Article in Atmospheric environment (Oxford, England : 1994), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.9field-weighted citation impact, top 13% 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

11 citing papers in PubMed, 23 citations in OpenAlex.

  1. Article
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  4. Impacts of Covid-19 interventions on air quality: evidence from Brazilian metropolitan regions.International journal of environmental science and technology : IJEST · 2023
    Article
  5. Quantifying diurnal changes in NOHygiene and environmental health advances · 2022
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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

6 authors at 2 institutions in 1 country.

Jacob BurnsInstitute for Medical Information Processing, Biometry, and Epidemiology - IBE, LMU Munich, Germany.
Sabine HoffmannInstitute for Medical Information Processing, Biometry, and Epidemiology - IBE, LMU Munich, Germany.
Christoph KurzInstitute of Health Economics and Health Care Management, Helmholtz Zentrum München, German Research Center for Environmental Health (GmbH), Germany.
Michael LaxyInstitute of Health Economics and Health Care Management, Helmholtz Zentrum München, German Research Center for Environmental Health (GmbH), Germany.
Stephanie PolusInstitute for Medical Information Processing, Biometry, and Epidemiology - IBE, LMU Munich, Germany.
Eva RehfuessInstitute for Medical Information Processing, Biometry, and Epidemiology - IBE, LMU Munich, Germany.
Institut für Medizinische Informatik, Biometrie und Epidemiologie · DEHelmholtz Zentrum München · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIn response to the COVID-19 pandemic, the Bavarian State government announced several COVID-19 mitigation measures beginning on March 16, 2020, which likely led to a reduction in traffic and a subsequent improvement in air quality. In this study, we evaluated the short-term effect of COVID-19 mitigation measures on NO

methodsWe applied two quasi-experimental approaches, a controlled interrupted time-series (c-ITS) approach and a synthetic control (SC) approach. Each approach compared changes occurring in 2020 to changes occurring in 2014-2019, and accounted for weather-related and other potential confounders. We hypothesized that the largest reductions in NO

resultsMain analyses largely supported our hypotheses. Specifically, at the two traffic sites, using the c-ITS approach we observed reductions of 9.34 μg/m

conclusionWe applied two quasi-experimental approaches in assessing the impact of the COVID-19 mitigation measures on NO

Indexed as

AccountabilityAir qualityCOVID-19Nitrogen dioxideQuasi-experimental study

Identifiers

PMID33250657
PMCPMC7680620
OpenAlexW3108846984

What OpenQuestion holds

Textmetadata
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.