Mobility restrictions were associated with reductions in COVID-19 incidence early in the pandemic: evidence from a real-time evaluation in 34 countries

Autor: Juhwan Oh, Hwa-Young Lee, Quynh Long Khuong, Jeffrey F. Markuns, Chris Bullen, Osvaldo Enrique Artaza Barrios, Seung-sik Hwang, Young Sahng Suh, Judith McCool, S. Patrick Kachur, Chang-Chuan Chan, Soonman Kwon, Naoki Kondo, Van Minh Hoang, J. Robin Moon, Mikael Rostila, Ole F. Norheim, Myoungsoon You, Mellissa Withers, Mu Li, Eun-Jeung Lee, Caroline Benski, Sookyung Park, Eun-Woo Nam, Katie Gottschalk, Matthew M. Kavanagh, Thi Giang Huong Tran, Jong-Koo Lee, S. V. Subramanian, Martin McKee, Lawrence O. Gostin
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Scientific Reports, Vol 11, Iss 1, Pp 1-17 (2021)
Druh dokumentu: article
ISSN: 2045-2322
78899125
DOI: 10.1038/s41598-021-92766-z
Popis: Abstract Most countries have implemented restrictions on mobility to prevent the spread of Coronavirus disease-19 (COVID-19), entailing considerable societal costs but, at least initially, based on limited evidence of effectiveness. We asked whether mobility restrictions were associated with changes in the occurrence of COVID-19 in 34 OECD countries plus Singapore and Taiwan. Our data sources were the Google Global Mobility Data Source, which reports different types of mobility, and COVID-19 cases retrieved from the dataset curated by Our World in Data. Beginning at each country’s 100th case, and incorporating a 14-day lag to account for the delay between exposure and illness, we examined the association between changes in mobility (with January 3 to February 6, 2020 as baseline) and the ratio of the number of newly confirmed cases on a given day to the total number of cases over the past 14 days from the index day (the potentially infective ‘pool’ in that population), per million population, using LOESS regression and logit regression. In two-thirds of examined countries, reductions of up to 40% in commuting mobility (to workplaces, transit stations, retailers, and recreation) were associated with decreased cases, especially early in the pandemic. Once both mobility and incidence had been brought down, further restrictions provided little additional benefit. These findings point to the importance of acting early and decisively in a pandemic.
Databáze: Directory of Open Access Journals
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