Individual Study / CHILD

Canadian Healthy Infant Longitudinal Development Study

Canadian Healthy Infant Longitudinal Development Study

CHILD logo
Initiatives -
Is designed to address gaps in understanding complex gene-environment interactions during pregnancy and early childhood and provides a platform for study of the development of atopic diseases including asthma, and other non-communicable diseases with early life origins.
Start Year
The CHILD Cohort Study received base funding from the Allergy, Genes and Environment Network of Centres of Excellence (AllerGen NCE) and the Canadian Institutes of Health Research (CIHR), in the sum of $6 million each, over 6 years.


Investigators Contacts
  • Dr. Prof. Sonia Anand
    McMaster University


Study design
Population cohort
Follow Up
The CHILD cohort of 3542 eligible children followed to age 5 years with repeated surveys of environmental and other exposures, linking detailed prenatal and postnatal environments, a diversity of biological and environmental samples and careful assessment of developing clinical phenotypes will foster examination of relationships relevant to the development of allergy, asthma and other chronic NCDs with origins in childhood.

Marker Paper

Subbarao P, Anand SS, Becker AB, et al. The Canadian Healthy Infant Longitudinal Development (CHILD) Study: examining developmental origins of allergy and asthma. Thorax. 2015;70(10):998-1000. doi:10.1136/thoraxjnl-2015-207246

PUBMED 26069286


Sources of Recruitment
  • Individuals
  • Families

Number of participants

Number of participants
Number of participants with biosamples
Supplementary Information
Pregnant mothers in their second or third trimester were recruited from the general population in four communities across Canada (Vancouver, Edmonton, Manitoba (Winnipeg, Morden, Winkler) and Toronto)


Availability of data and biosamples


Availability of access information

On the study website :