Evidence map›Paper›PMID 36087339›Full record

ArticleEuropean journal of public health2022

The impact of face-mask mandates on all-cause mortality in Switzerland: a quasi-experimental study.

Giacomo De Giorgi, Pascal Geldsetzer, Felix Michalik, M Maddalena Speziali

Abstract read
In one paragraph

Article in European journal of public health, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–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

3 citing papers in PubMed.

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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

4 authors.

Giacomo De GiorgiInstitute of Economics and Econometrics, Geneva School of Economics and Management, University of Geneva, Geneva 4, Switzerland.ORCID 0000-0002-8811-4859
Pascal GeldsetzerDivision of Primary Care and Population Health, Department of Medicine, Stanford University, Stanford, CA, USA.ORCID 0000-0002-8878-5505
Felix MichalikHeidelberg Institute of Global Health, Heidelberg University, Heidelberg, Germany.ORCID 0000-0001-5589-5700
M Maddalena SpezialiInstitute of Economics and Econometrics, Geneva School of Economics and Management, University of Geneva, Geneva 4, Switzerland.ORCID 0000-0003-1959-3371

Funding

The impact of clinical interventions for sepsis in routine care and among detailed patient subgroups: A novel approach for causal effect estimation in electronic health record dataDP2AI171011 · NIAID · STANFORD UNIVERSITY · PI Pascal Geldsetzer · 2022 to 2026
$2.4M
NIAID NIH HHS DP2 AI171011
6 · The paper itself

Abstract

backgroundWhereas there is strong evidence that wearing a face mask is effective in reducing the spread of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), evidence on the impact of mandating the wearing of face masks on deaths from coronavirus disease 2019 (COVID-19) and all-cause mortality is more sparse and likely to vary by context. Focusing on a quasi-experimental setting in Switzerland, we aimed to determine (i) the effect of face-mask mandates for indoor public spaces on all-cause mortality; and (ii) how the effect has varied over time, and by age and sex.

methodsOur analysis exploited the fact that between July and October 2020, nine cantons in Switzerland extended a face-mask mandate at different time points from being restricted to public transportation only to applying to all public indoor places. We used both a Difference-in-Differences approach with fixed-effects for canton and week and an event-study approach.

resultsIn our main Difference-in-Differences model, the face-mask mandate was associated with a 0.3% reduction in all-cause mortality [95% confidence interval (CI): -3.4% to 2.7%; P = 0.818]. This null effect was confirmed in the event-study approach and a variety of robustness checks. Combining the face-mask mandate with social distancing rules led to an estimated 5.1% (95% CI: -7.9% to -2.4%; P = 0.001) reduction in all-cause mortality.

conclusionsMandating face-mask use in public indoor spaces in Switzerland in mid-to-late 2020 does not appear to have resulted in large reductions in all-cause mortality in the short term. There is some suggestion that combining face-mask mandates with social distancing rules reduced all-cause mortality.

Indexed as

COVID-19MasksHumansPhysical DistancingSARS-CoV-2Switzerland

Identifiers

PMID36087339
PMCPMC9527954

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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.