Efficacy of COVID-19 Public Health Measures in Philadelphia, New York City, Baltimore, and Chicago.

Risk Manag Healthc Policy · 2023 · PMC9901348 · PMID 36755748

Europe PMC DOI

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a significant trendno p-value reported

Overall, the impact of the mask mandate reveals a significant trend of both immediate and sustained reductions of cases, hospitalizations, and deaths across cities in the US.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.