A causal inference approach for estimating effects of non-pharmaceutical interventions during Covid-19 pandemic.

In response to the outbreak of the coronavirus disease 2019 (Covid-19), governments worldwide have introduced multiple restriction policies, known as non-pharmaceutical interventions (NPIs). However, the relative impact of control measures and the long-term causal contribution of each NPI are still...

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Main Authors: Vesna Barros, Itay Manes, Victor Akinwande, Celia Cintas, Osnat Bar-Shira, Michal Ozery-Flato, Yishai Shimoni, Michal Rosen-Zvi
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2022-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0265289
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author Vesna Barros
Itay Manes
Victor Akinwande
Celia Cintas
Osnat Bar-Shira
Michal Ozery-Flato
Yishai Shimoni
Michal Rosen-Zvi
author_facet Vesna Barros
Itay Manes
Victor Akinwande
Celia Cintas
Osnat Bar-Shira
Michal Ozery-Flato
Yishai Shimoni
Michal Rosen-Zvi
author_sort Vesna Barros
collection DOAJ
description In response to the outbreak of the coronavirus disease 2019 (Covid-19), governments worldwide have introduced multiple restriction policies, known as non-pharmaceutical interventions (NPIs). However, the relative impact of control measures and the long-term causal contribution of each NPI are still a topic of debate. We present a method to rigorously study the effectiveness of interventions on the rate of the time-varying reproduction number Rt and on human mobility, considered here as a proxy measure of policy adherence and social distancing. We frame our model using a causal inference approach to quantify the impact of five governmental interventions introduced until June 2020 to control the outbreak in 113 countries: confinement, school closure, mask wearing, cultural closure, and work restrictions. Our results indicate that mobility changes are more accurately predicted when compared to reproduction number. All NPIs, except for mask wearing, significantly affected human mobility trends. From these, schools and cultural closure mandates showed the largest effect on social distancing. We also found that closing schools, issuing face mask usage, and work-from-home mandates also caused a persistent reduction on Rt after their initiation, which was not observed with the other social distancing measures. Our results are robust and consistent across different model specifications and can shed more light on the impact of individual NPIs.
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spelling doaj.art-df5e895b8e77432d9d127a2d166196122022-12-22T02:31:35ZengPublic Library of Science (PLoS)PLoS ONE1932-62032022-01-01179e026528910.1371/journal.pone.0265289A causal inference approach for estimating effects of non-pharmaceutical interventions during Covid-19 pandemic.Vesna BarrosItay ManesVictor AkinwandeCelia CintasOsnat Bar-ShiraMichal Ozery-FlatoYishai ShimoniMichal Rosen-ZviIn response to the outbreak of the coronavirus disease 2019 (Covid-19), governments worldwide have introduced multiple restriction policies, known as non-pharmaceutical interventions (NPIs). However, the relative impact of control measures and the long-term causal contribution of each NPI are still a topic of debate. We present a method to rigorously study the effectiveness of interventions on the rate of the time-varying reproduction number Rt and on human mobility, considered here as a proxy measure of policy adherence and social distancing. We frame our model using a causal inference approach to quantify the impact of five governmental interventions introduced until June 2020 to control the outbreak in 113 countries: confinement, school closure, mask wearing, cultural closure, and work restrictions. Our results indicate that mobility changes are more accurately predicted when compared to reproduction number. All NPIs, except for mask wearing, significantly affected human mobility trends. From these, schools and cultural closure mandates showed the largest effect on social distancing. We also found that closing schools, issuing face mask usage, and work-from-home mandates also caused a persistent reduction on Rt after their initiation, which was not observed with the other social distancing measures. Our results are robust and consistent across different model specifications and can shed more light on the impact of individual NPIs.https://doi.org/10.1371/journal.pone.0265289
spellingShingle Vesna Barros
Itay Manes
Victor Akinwande
Celia Cintas
Osnat Bar-Shira
Michal Ozery-Flato
Yishai Shimoni
Michal Rosen-Zvi
A causal inference approach for estimating effects of non-pharmaceutical interventions during Covid-19 pandemic.
PLoS ONE
title A causal inference approach for estimating effects of non-pharmaceutical interventions during Covid-19 pandemic.
title_full A causal inference approach for estimating effects of non-pharmaceutical interventions during Covid-19 pandemic.
title_fullStr A causal inference approach for estimating effects of non-pharmaceutical interventions during Covid-19 pandemic.
title_full_unstemmed A causal inference approach for estimating effects of non-pharmaceutical interventions during Covid-19 pandemic.
title_short A causal inference approach for estimating effects of non-pharmaceutical interventions during Covid-19 pandemic.
title_sort causal inference approach for estimating effects of non pharmaceutical interventions during covid 19 pandemic
url https://doi.org/10.1371/journal.pone.0265289
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