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What’s Available?

Questionnaire Data

  • Baseline questionnaire completed by about 225,000 participants.
  • Almost 1,400 variables describing social and economic demographics, personal and family health histories, medications, sleep patterns, alcohol and tobacco use, physical activity and environmental exposures.
  • Follow-up questionnaire completed in March 2018. It asked participants for an update on their health and additional questions around e-cigarettes and marijuana use, mental health and over-the-counter drugs. Data from the Follow-up Questionnaire are now available.
  • The Work History Questionnaire was completed in December, 2019.
  • Regular follow-up questionnaires will be conducted to track changes in overall health.
  • The COVID-19 Questionnaire was completed November 13, 2020.