2022
DOI: 10.1186/s12992-021-00795-0
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COVID-19 data are messy: analytic methods for rigorous impact analyses with imperfect data

Abstract: Background The COVID-19 pandemic has led to an avalanche of scientific studies, drawing on many different types of data. However, studies addressing the effectiveness of government actions against COVID-19, especially non-pharmaceutical interventions, often exhibit data problems that threaten the validity of their results. This review is thus intended to help epidemiologists and other researchers identify a set of data issues that, in our view, must be addressed in order for their work to be cr… Show more

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Cited by 20 publications
(29 citation statements)
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“…Researchers have also discussed how data on the timing of interventions, especially at the subnational and local levels, may be important but are rarely documented [23]. As such, another important result from this work is that most response activities in cities were reactively implemented after COVID-19 had already been confirmed in their city, as opposed to more proactively implemented.…”
Section: Discussionmentioning
confidence: 99%
“…Researchers have also discussed how data on the timing of interventions, especially at the subnational and local levels, may be important but are rarely documented [23]. As such, another important result from this work is that most response activities in cities were reactively implemented after COVID-19 had already been confirmed in their city, as opposed to more proactively implemented.…”
Section: Discussionmentioning
confidence: 99%
“…Finally, one may fear that our results can be affected by the quality of data as well as their comparability across countries (see [ 32 ] for a discussion of the strengths and weaknesses of data sources on Covid-19). Data on Covid-19 threats and NPIs (such as the number of new cases and deaths) are likely to be subject to country and time biases due to multiple reasons (e.g.…”
Section: Discussionmentioning
confidence: 99%
“…Researchers have also discussed how data on the timing of interventions, especially at the subnational and local levels, may be important but are rarely documented [24]. As such, another important result from this work is that most response activities in cities were reactively implemented after COVID-19 had already been confirmed in their city, as opposed to more proactively implemented.…”
Section: Plos Global Public Healthmentioning
confidence: 98%