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The US COVID-19 Trends and Impact Survey: Continuous real-time measurement of COVID-19 symptoms, risks, protective behaviors, testing, and vaccination.
Salomon, Joshua A; Reinhart, Alex; Bilinski, Alyssa; Chua, Eu Jing; La Motte-Kerr, Wichada; Rönn, Minttu M; Reitsma, Marissa B; Morris, Katherine A; LaRocca, Sarah; Farag, Tamer H; Kreuter, Frauke; Rosenfeld, Roni; Tibshirani, Ryan J.
  • Salomon JA; Department of Health Policy, Stanford University, Stanford, CA 94305; salomon1@stanford.edu.
  • Reinhart A; Freeman Spogli Institute for International Studies, Stanford University, Stanford, CA 94305.
  • Bilinski A; Department of Statistics and Data Science, Carnegie Mellon University, Pittsburgh, PA 15213.
  • Chua EJ; Delphi Group, Carnegie Mellon University, Pittsburgh, PA 15213.
  • La Motte-Kerr W; Department of Health Services, Policy and Practice, Brown School of Public Health, Providence, RI 02903.
  • Rönn MM; Delphi Group, Carnegie Mellon University, Pittsburgh, PA 15213.
  • Reitsma MB; Machine Learning Department, Carnegie Mellon University, Pittsburgh, PA 15213.
  • Morris KA; Delphi Group, Carnegie Mellon University, Pittsburgh, PA 15213.
  • LaRocca S; Machine Learning Department, Carnegie Mellon University, Pittsburgh, PA 15213.
  • Farag TH; Department of Global Health and Population, Harvard T.H. Chan School of Public Health, Boston, MA 02115.
  • Kreuter F; Department of Health Policy, Stanford University, Stanford, CA 94305.
  • Rosenfeld R; Demography and Survey Science, Meta, Menlo Park, CA 94025.
  • Tibshirani RJ; Demography and Survey Science, Meta, Menlo Park, CA 94025.
Proc Natl Acad Sci U S A ; 118(51)2021 12 21.
Article in English | MEDLINE | ID: covidwho-1569347
ABSTRACT
The US COVID-19 Trends and Impact Survey (CTIS) is a large, cross-sectional, internet-based survey that has operated continuously since April 6, 2020. By inviting a random sample of Facebook active users each day, CTIS collects information about COVID-19 symptoms, risks, mitigating behaviors, mental health, testing, vaccination, and other key priorities. The large scale of the survey-over 20 million responses in its first year of operation-allows tracking of trends over short timescales and allows comparisons at fine demographic and geographic detail. The survey has been repeatedly revised to respond to emerging public health priorities. In this paper, we describe the survey methods and content and give examples of CTIS results that illuminate key patterns and trends and help answer high-priority policy questions relevant to the COVID-19 epidemic and response. These results demonstrate how large online surveys can provide continuous, real-time indicators of important outcomes that are not subject to public health reporting delays and backlogs. The CTIS offers high value as a supplement to official reporting data by supplying essential information about behaviors, attitudes toward policy and preventive measures, economic impacts, and other topics not reported in public health surveillance systems.
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Full text: Available Collection: International databases Database: MEDLINE Main subject: Health Status Indicators / COVID-19 Testing / COVID-19 Type of study: Diagnostic study / Experimental Studies / Observational study / Prognostic study / Randomized controlled trials Topics: Vaccines Limits: Adult / Aged / Female / Humans / Male / Middle aged / Young adult Country/Region as subject: North America Language: English Year: 2021 Document Type: Article

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Full text: Available Collection: International databases Database: MEDLINE Main subject: Health Status Indicators / COVID-19 Testing / COVID-19 Type of study: Diagnostic study / Experimental Studies / Observational study / Prognostic study / Randomized controlled trials Topics: Vaccines Limits: Adult / Aged / Female / Humans / Male / Middle aged / Young adult Country/Region as subject: North America Language: English Year: 2021 Document Type: Article