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Health Questionnaires

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

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Work History Questionnaire

The OHS Work History Questionnaire is now available for participants! It asks about all the jobs you’ve had in your life, and will be used by researchers examining the potential effect that different aspects of your work life, such as shift work, commute times, chemical exposures and more, have on your health. Log into your account and take the questionnaire.

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