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The Effectiveness of Free Face Mask Distribution on Use of Face Masks. A Cluster Randomised Trial in Stovner District of Oslo, Norway.
Fretheim, Atle; Elgersma, Ingeborg Hess; Kristiansen, Fredrik Aaeng; Varmbo, Caroline Rømming; Olsbø, Miriam Kristine Salame; Glover, Iselin Havstein Strand; Flatø, Martin.
  • Fretheim A; Centre for Epidemic Interventions Research, Norwegian Institute of Public Health, 0213 Oslo, Norway.
  • Elgersma IH; Health Services Division, Norwegian Institute of Public Health, 0213 Oslo, Norway.
  • Kristiansen FA; Research Administrative Support, Norwegian Institute of Public Health, 0213 Oslo, Norway.
  • Varmbo CR; Stovner District-Administration, 0985 Oslo, Norway.
  • Olsbø MKS; Stovner District-Administration, 0985 Oslo, Norway.
  • Glover IHS; Stovner District-Administration, 0985 Oslo, Norway.
  • Flatø M; Centre for Fertility and Health, Norwegian Institute of Public Health, 0213 Oslo, Norway.
Int J Environ Res Public Health ; 18(17)2021 08 26.
Article in English | MEDLINE | ID: covidwho-1379973
ABSTRACT
Face masks are recommended as a means of reducing the spread of COVID-19, but there are practically no studies of interventions to increase face mask use. Over three weeks, nine grocery stores in the Stovner District of Oslo were randomly selected each day to have distribution of free face masks outside their entrance. Free face mask distribution increased the proportion of customers wearing a mask by 6.0 percentage points (adjusted, 95% CI 3.5-8.5). Mean mask usage was 91.7% in the control group and 97.1% in the treatment group (pooled SD 5.3%). Practically all those who wore masks had both nose and mouth covered. We conclude that free distribution of face masks increased their use. Similar trials can be conducted within a short period of time.
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Full text: Available Collection: International databases Database: MEDLINE Main subject: COVID-19 / Masks Type of study: Experimental Studies / Randomized controlled trials Limits: Humans Country/Region as subject: Europa Language: English Year: 2021 Document Type: Article Affiliation country: Ijerph18178971

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Full text: Available Collection: International databases Database: MEDLINE Main subject: COVID-19 / Masks Type of study: Experimental Studies / Randomized controlled trials Limits: Humans Country/Region as subject: Europa Language: English Year: 2021 Document Type: Article Affiliation country: Ijerph18178971