Population-scale longitudinal mapping of COVID-19 symptoms, behaviour and testing

Nat Hum Behav. 2020 Sep;4(9):972-982. doi: 10.1038/s41562-020-00944-2. Epub 2020 Aug 26.

Abstract

Despite the widespread implementation of public health measures, coronavirus disease 2019 (COVID-19) continues to spread in the United States. To facilitate an agile response to the pandemic, we developed How We Feel, a web and mobile application that collects longitudinal self-reported survey responses on health, behaviour and demographics. Here, we report results from over 500,000 users in the United States from 2 April 2020 to 12 May 2020. We show that self-reported surveys can be used to build predictive models to identify likely COVID-19-positive individuals. We find evidence among our users for asymptomatic or presymptomatic presentation; show a variety of exposure, occupational and demographic risk factors for COVID-19 beyond symptoms; reveal factors for which users have been SARS-CoV-2 PCR tested; and highlight the temporal dynamics of symptoms and self-isolation behaviour. These results highlight the utility of collecting a diverse set of symptomatic, demographic, exposure and behavioural self-reported data to fight the COVID-19 pandemic.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Asymptomatic Diseases / epidemiology
  • Betacoronavirus*
  • COVID-19
  • COVID-19 Testing
  • Clinical Laboratory Techniques / statistics & numerical data*
  • Coronavirus Infections / diagnosis
  • Coronavirus Infections / epidemiology*
  • Coronavirus Infections / prevention & control
  • Coronavirus Infections / psychology
  • Female
  • Humans
  • Longitudinal Studies
  • Male
  • Mobile Applications
  • Models, Statistical
  • Pandemics / prevention & control
  • Pandemics / statistics & numerical data
  • Pneumonia, Viral / diagnosis
  • Pneumonia, Viral / epidemiology*
  • Pneumonia, Viral / prevention & control
  • Pneumonia, Viral / psychology
  • SARS-CoV-2
  • United States / epidemiology