The Ontario Health Study follows the health of 225,000 Ontarians, making data & bio samples available to researchers investigating cancer and other conditions.

Joined August 2010
406 Photos and videos
The OHS will be pausing our activities on this platform. You can continue to follow our study activities via our LinkedIn and Facebook accounts.
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Here’s what Gail from Ottawa had to say about why she has continued to be a member of the Ontario Health Study since joining in 2010:
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Our friends at @CancerCareMB & @healthfuturesk are recruiting! If you have friends or family in Manitoba or Saskatchewan between the ages of 30-74, please share so they can register to participate. buff.ly/3QOjxmk
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Please note that our office will be closed from noon on Friday December 22nd through Monday January 1st, 2024. We will resume regular 9-to-5 hours on Tuesday January 2nd. Thank you and have a healthy and happy holiday.
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What motivates participants to continue to take part in #HealthResearch studies like the OHS? Here’s what Gwen from Toronto had to say about why she continues to be a member of the OHS: buff.ly/47myOC5
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Ontario Health Study retweeted
12 Dec 2023
In Nov., CanPath researchers and staff from across Canada travelled to Halifax for the Canadian Cancer Research Conference. At the CanPath concurrent session, patient partner and @Atlantic_PATH participant Pauline McIntyre shared her cancer story. #CCRC2023
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📢 Great news! OHS & @CanPath #COVID19 data have been featured in a Canadian medical journal that showed how many people across Canada developed antibodies in response to COVID-19 infection or vaccination. These results were published in the @CMAJ. buff.ly/47RfYD4
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The Ontario Health Study website is currently unavailable due to scheduled maintenance, concluding by midnight on Sunday, December 10th. We apologize for the inconvenience.
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Please note that the OHS website will be unavailable this weekend due to scheduled maintenance, beginning Friday, December 8th at 4:30pm and ending by midnight on Sunday, December 10th.
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Ontario Health Study retweeted
Do #anxiety and #depression affect our risk of cancer? An international research project used @ON_HealthStudy data to investigate possible links between depression, anxiety and certain cancers. oicr.on.ca/do-anxiety-and-de… #mentalhealth
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Is there an association between #anxiety & #depression & many common cancers? New research from a large cancer study which used OHS data had some surprising findings: buff.ly/3T2rtmS
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Ontario Health Study retweeted
27 Nov 2023
Why do some people remain healthier and live longer compared to those who develop a disease earlier on? 🤔 On Wed., Dec. 6 at noon EST, get inspired by two trainees' studies and learn more about how you can leverage CanPath data for your research! bit.ly/CanPathTraineeWebinar…
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📢 Our November Newsletter is out! 🩸 We’re collecting new blood samples! 📚 OHS COVID-19 data featured in Canadian medical journal 😮 Surprising findings from a large cancer study 👍 We heard you - Results of our readers poll buff.ly/3R77ylm

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According to @DiabetesCanada, 11 million Canadians have #diabetes or #prediabetes. The information that our participants have so generously provided, are being used by researchers to find better ways to treat, & even prevent, diabetes & other chronic diseases. #WorldDiabetesDay
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Ontario Health Study retweeted
13 Nov 2023
Did you miss today’s #CanPath session at #CCRC2023? There’s still time to learn more tomorrow at 9:00 am AST at the Networked Cancer Research session, featuring Dr. Jennifer Brooks! ⭐️
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Ontario Health Study retweeted
Team members from @CanPath, @AtlanticPATH, @CARTaGENE, @ON_HealthStudy, @MBTmrwProject, @ATPResearch & @bcgenproj are excited to attend #CCRC2023 hosted by the @CCRAlliance! Be sure to watch for the CanPath session chaired by Dr. Philip Awadalla (@AwadallaLab). #CancerResearch
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Come work with us! Check out the #job posting for Administrative Coordinator to help support multiple teams within @OICR_news, including us at the Ontario Health Study. We are a small, #hybrid, and innovative team! #health #research buff.ly/3FOJyNw
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Here’s what Earla from Burlington had to say about why she has continued to be a member of the Ontario Health Study since joining in 2014:
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Ontario Health Study retweeted
We're excited for the session on @CanPath: Canada's Largest Population Laboratory for Cancer Research at #CCRC2023 hosted by the @CCRAlliance. #CancerResearch Additional details: bit.ly/3QOEXkP
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Ontario Health Study retweeted
Dr. Ellen Sweeney (Research Director) and Mr. Yunsong Cui (Data Analyst) are looking forward to representing Atlantic PATH at the #CCRC2023 hosted by @CCRAlliance. Additional details: bit.ly/49sdSLx #CancerResearch #Cohort
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