DOI: 10.3886/icpsr39207.v1
title: COVID-19 Trends and Impact Survey (CTIS), United States, 2020-2022
title: Version 1

description: The United States COVID-19 Trends and Impact Survey (CTIS) was a voluntary survey of Facebook users in the United States conducted from April 2020 to June 2022. CTIS was intended to aid in pandemic forecasting and response at fine spatiotemporal detail. Through collaboration with Meta, it randomly sampled Facebook active users at a rate sufficient to provide roughly 35,000 responses per day, on average. Survey questions covered topics including COVID-like symptoms, behavior (such as social distancing), COVID testing, mental health, health-related beliefs, trust in officials and information sources, schooling, vaccination acceptance and hesitancy, and related subjects. Respondents provided their ZIP code. Demographic variables include age, gender, education, race/ethnicity, and occupation. Meta generated survey weights to correct for non-response and to match the US adult population age and gender distribution.
The 27 datasets make up the microdata. Users should see the Microdata User Guide for documentation on the use and interpretation of the microdata files.
Two zip files are available for public download: a monthly data zip file and a weekly data zip file. These include the aggregate data. To access these files, go to the "Download" tab and select "Other." Ensure you have enough storage space before proceeding, as the files are large.
description: The aim of this study was to support research and inform public health decisions relating to the COVID-19 pandemic.
description: CTIS was a daily repeated cross-sectional survey that ran continuously starting April 6, 2020 in the US. The sampling frame was Facebook users aged 18 years or older who
have been active on the platform in the last month. Sampled Facebook users saw the invitation at the top of their Feed, but the
surveys were collected by the universities using Qualtrics hosted by Carnegie Mellon University or University of Maryland. Meta neither
collected nor received survey responses. There were 12 versions of the survey questionnaires. The Delphi US CTIS was
translated into 8 languages.
description: A weight variable is provided to correct for non-response bias and to post-stratify to match the United States age and gender distribution. See the User Guide for the COVID-19 Trends and Impact Survey Weights for details on use of the weights.
description: Response Rates: See section 4.6 of the Methodology Report for the COVID-19 Trends and Impact Survey, provided with this data, for cooperation rates and their method of calculation.
description: Daily stratified random sample of the adult Facebook Active User Base in the United States.
description: Datasets: 
DS0: Study-Level Files
DS1: April 2020 Data
DS2: May 2020 Data
DS3: June 2020 Data
DS4: July 2020 Data
DS5: August 2020 Data
DS6: September 2020 Data
DS7: October 2020 Data
DS8: November 2020 Data
DS9: December 2020 Data
DS10: January 2021 Data
DS11: February 2021 Data
DS12: March 2021 Data
DS13: April 2021 Data
DS14: May 2021 Data
DS15: June 2021 Data
DS16: July 2021 Data
DS17: August 2021 Data
DS18: September 2021 Data
DS19: October 2021 Data
DS20: November 2021 Data
DS21: December 2021 Data
DS22: January 2022 Data
DS23: February 2022 Data
DS24: March 2022 Data
DS25: April 2022 Data
DS26: May 2022 Data
DS27: June 2022 Data
description: Adult residents of the United States who are active Facebook users. Smallest Geographic Unit: FIPS code
description: web-based surveyA global version of CTIS was conducted by the University of Maryland Social Data Science Center and is available separately.Please visit the CTIS website for additional information.