Back to Top

Health Questionnaires

The Ontario Health Study collects health data by asking participants to fill out online questionnaires about their health.

Woman writing

Work History Questionnaire

Thank you to the more than 30,000 OHS participants that took part in the Work History Questionnaire. The questionnaire closed December 1, 2019. The OHS team is now compiling and preparing the raw data to make it ready for approved researchers in 2020.

Baseline Questionnaire

As part of registration for the Study, participants were asked to fill out our baseline questionnaire, which looks at things such as:

  • Demographics
  • Personal and family health history
  • Sleep patterns
  • Physical activity
  • Emotional health and well-being
  • Alcohol and tobacco use
  • Environmental exposures

Follow-up Questionnaires