Canadian Healthy Infant Longitudinal Development Study (CHILD)
CHILD was designed to investigate interactions between the environment and genetics and how these contribute to allergy and asthma. The study recruited pregnant mothers from urban and rural sites in Canada, namely Vancouver, Edmonton, Winnipeg, Morden, Winkler, and Toronto. Participating mothers were at least 18 years old at baseline and living within 50 kilometres of a participating hospital for delivery. At baseline, 3,600 mothers were included in the cohort and after delivery, over 3,500 babies were included. Cohort members self-identify as multiple ethnicities including First Nations, Black, Southeast Asian, White Caucasian, Middle Eastern, and more.
Study design
Cohort - primary caregiver and child
Number of participants at first data collection
3,624 (mothers)
3,542 (children)
Age at first data collection
≥ 18 years (mothers)
Birth (children)
Participant year of birth
Varied (mothers)
2008 - 2012 (children)
Participant sex
All
Representative sample at baseline?
No
Sample features
Country
Year of first data collection
2008
Primary Institutions
Allergy, Genes and Environment Network (AllerGen)
Chicoutimi University Hospital (Hôpital de Chicoutimi)
Environment Canada
Hospital for Sick Children (Sick Kids)
McMaster University
Profile paper DOI
Funders
Alberta Health Services (AHS)
Allergy, Genes and Environment Network (AllerGen)
Boehringer Ingelheim
British Columbia Cancer Foundation
COVID-19 Immunity Task Force (CITF)
Ongoing?
Yes
Data types collected
- Interview – online
- Interview – phone
- Physical environment assessment (e.g. pollution, mould)
- Physical or biological assessment (e.g. blood, saliva, gait, grip strength, anthropometry)
- Secondary data
- None
- None
- Geographic, spatial & environmental data
Engagement
Keywords
