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      • Mask-wearing varied over time and across the 38 countries. While some countries consistently showed high prevalence throughout, in other countries mask usage increased gradually, and a few other countries remained at low prevalence.
      www.ncbi.nlm.nih.gov › pmc › articles
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  2. Nov 15, 2021 · Trends over time across the 38 countries (Fig. 1) suggested considerable heterogeneity in self-reported mask-wearing in public across countries. Some countries had consistently high mask usage (> 75%) from April until October (ex: Chile, Italy, Japan, Argentina, Colombia, Turkey, Romania, etc.) (Fig. 1 A).

    • Elena Badillo-Goicoechea, Ting-Hsuan Chang, Esther Kim, Sarah LaRocca, Katherine Morris, Xiaoyi Deng...
    • 2021
  3. In the analytical sample, we included responses from 19 million adults aged 18 years or older living in 114 countries and territories so far. From April 2020 until present, the survey asked the participants, “In the last 7 days, how often did you wear a mask when in public?”

  4. Nov 15, 2021 · Results: Mask-wearing varied over time and across the 38 countries. While some countries consistently showed high prevalence throughout, in other countries mask usage increased gradually, and a few other countries remained at low prevalence.

    • Elena Badillo-Goicoechea, Ting-Hsuan Chang, Esther Kim, Sarah LaRocca, Katherine Morris, Xiaoyi Deng...
    • 2021
  5. Jul 13, 2020 · The WHO changed its guidance in June. How many people wear face coverings? Why some countries wear face masks and others don't. Why aren't more of our politicians wearing masks?

  6. Jun 6, 2023 · This study finds that ’in countries with public policies and cultural norms supporting public mask-wearing, per-capita coronavirus mortality increased on average by just 15.8% each week, as ...

  7. Sep 15, 2022 · The survey shows that mask-wearing exhibits substantial variations across countries and over time during the pandemic’s early phase. We use a reduced form econometric model to relate population-wide variation in mask-wearing to the growth rate of confirmed COVID-19 cases.

  8. Nov 15, 2021 · Results Mask-wearing varied over time and across the 38 countries. While some countries consistently showed high prevalence throughout, in other countries mask usage increased gradually, and a...

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