Individual Study / OHS

Ontario Health Study

Ontario Health Study

OHS logo
Networks -
Datasets -
Variables -

The Ontario Health Study (OHS) is a longitudinal prospective cohort study that will serve as an integrated platform for investigating the complex interplay of environmental, lifestyle and genetic factors that increase individual and community risk of developing cancer, heart disease, diabetes, asthma, depression and other common adult diseases. All adult residents of Ontario are eligible to participate, and the intent is to follow participants for their entire lifespan. The OHS is committed to allowing access to data and samples for all bona fide researchers with the appropriate scientific and ethical approvals.

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Members

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Investigators Contacts
  • Dr. Vivek Goel
    Ontario Institute for Cancer Research
  • Dr. Karen Menard
    Ontario Institute for Cancer Research

Conception

Study design
Cohort
Start Year
2009

Recruitment

Sources of Recruitment
  • Individuals

Number of participants

Number of participants
150,000
Number of participants with biosamples
78,000

Access

Availability of data and biosamples

Data
Biosamples
Other

Timeline

Population

The OHS cohort consists of men and women aged 18 and over residing in the Province of Ontario.

Selection Criteria
Minimum age
18
Newborns
Twins
Countries
  • Canada
Supplementary Information

Only exclusion noted to date is incarceration.

Recruitment

Sources of recruitment
  • General population
General Population
  • Volunteer enrolment

Number of participants

Number of participants
Number of participants with biosamples
Data Collection Events
# Name Description Start End
0 OHS - Pilot Phase

March 2009 – July 2010: Questionnaire and physical measures data, and blood and urine samples collected from 8,205 pilot participants in three assessment centres.

2009-03 2010-07
0 OHS - Baseline Recruitment

The baseline recruitment is ongoing.

Enrichment of resource is ongoing: 1. Biospecimen collection 2. Assessment centre visits 3. Follow-up questionnaires ...

2010-09 2015