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Video: Participants make OHS research possible

May 14, 2019 // Study Updates

What if there was no Ontario Health Study? OHS researchers talk about the value of the data and biosamples collected from our 225,000 volunteer participants over the last 10 years.


Video: Ontario Health Study – What’s next for Participants

Oct 26, 2018 // Study Updates

Ontario Health Study Program Manager Kelly McDonald talks about the OHS research underway in 2018, and a new online questionnaire about work history, that will be available to participants in spring, 2019.


First Ontario Health Study Follow-up Questionnaire will be closing March 31, 2018

Jan 5, 2018 // Study Updates

The Ontario Health Study launched its first follow-up questionnaire in November 2016. Since then all eligible participants have received an email inviting them to sign into their accounts to complete the questionnaire. To date, more than 40,000 participants have started their questionnaire. Those who have not completed their questionnaire have until March 31, 2018 to do so.


Frequently Asked Questions about the Follow-Up Questionnaire

Jun 19, 2017 // Study Updates

Can I complete the questionnaire on my iPad? Which web browser works best? The type of device and web browser can make a big difference when trying to complete the follow-up questionnaire. If possible, it is best to use a PC when filling out the questionnaire. Participants may experiences some issues if they use a