Individual Study / TARGet Kids!

TARGet Kids!

TARGet Kids!

TARGet Kids! logo
Initiatives -
Start Year
Canadian Institutes of Health Research (CIHR), CAMH Foundation, St. Michael's Hospital, Hospital for Sick Children Research Institute, Li Ka Shing Knowledge Institute of St.Michael's Hospital, Montreal Children’s Hospital Foundation and the Research Institute of the McGill University Health Centre, Physician Services Incorporated, Sickkids Foundation, St.Michael's Hospital Foundation and Thrasher Research Foundation.
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Investigators Contacts
  • Dr. Catherina Birken
    Hospital for Sick Children


Study design
Population cohort
Follow Up
Out of the 5062 enrolled, and of those due for follow-up (i.e. at least 18 months has passed since their last visit), longitudinal data have been collected as follows: 3187 (3187/4149 = 76.8%) have had two or more visits; 1691 (1691/2299 = 73.6%) have had three or more visits; and 628 (628/889 = 70.6%) have had four or more visits. Thus, our retention rate is more than 70%. Attrition in this follow-up rate is due to study withdrawal (reasons given include lack of time and lack of interest) and loss to follow-up as a result of an unknown address or the family having changed physicians or moved away

Marker Paper

Carsley, S., Borkhoff, C. M., Maguire, J. L., Birken, C. S., Khovratovich, M., McCrindle, B., Macarthur, C., Parkin, P. C., & TARGet Kids! Collaboration (2015). Cohort Profile: The Applied Research Group for Kids (TARGet Kids!). International journal of epidemiology, 44(3), 776–788.

PUBMED 24982016


Sources of Recruitment
  • Individuals

Number of participants

Number of participants
Number of participants with biosamples


Availability of data and biosamples


Availability of access information

On the study website :