CHILD Cohort Study

Legacy Project

Formerly the Canadian Healthy Infant Longitudinal Development (CHILD) Study

Research Leaders

Dr. P.J. Subbarao, Director & Toronto site leader; Staff Respirologist, The Hospital for Sick Children; Assistant Professor, Paediatrics, University of Toronto Dr. Stuart Turvey, Co-Director & Vancouver site leader; Professor, Pediatrics, The University of British Columbia
13-Becker Mandhane Sears-2016
Dr. Allan Becker, Winnipeg site leader; Professor, Pediatrics and Child Health, University of Manitoba Dr. Piush Mandhane, Edmonton site leader; Assistant Professor, Pediatrics, University of Alberta Dr. Malcolm Sears, Founding Director; Professor, Respirology, Department of Medicine, McMaster University

Strategic Focus

The CHILD Cohort Study—a nationwide birth cohort study involving over 3,300 Canadian infants and their families—explores how genetics and early childhood environmental exposures impact the development of asthma, allergies and other chronic childhood diseases.

CHILD Study Publications
CHILD Cohort Study News
CHILD Cohort Study website
Synergy in Microbiota Research (SyMBIOTA) website
  • a $2.5 million CIHR-funded project using CHILD Cohort Study data and biological samples


Video: Link between traffic pollution and allergy risk

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Video introduction to the CHILD Cohort Study—Understanding allergies, asthma and chronic disease

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CHILD Cohort Study Projects


An Assessment of Long-Term Indoor Residential Pollution Exposures among Canadian Children

2009 - 2011

Allen, Ryan; Beischlag, Tim; Brauer, Michael; Brook, Jeff; Kollmann, Tobias; Lanphear, Bruce; Scott, James; Subbarao, Padmaja; Takaro, Timothy

CHILD Coordinator 3-year Clinic Training Session Workshop in Manitoba

2012 - 2013

Becker, Allan; Chikuma, Joyce; Chooniedass, Rishma; Duncan, Joanne; Lefebvre, Diana; Mauro, Mary Ann; Sears, Malcolm; Warner, Linda

CHILD Executive Meeting Workshop in Toronto

2012 - 2013

Becker, Allan; Befus, Dean; Brook, Jeff; Denburg, Judah; Duncan, Joanne; Lefebvre, Diana; Lou, Wendy; Mandhane, Piush; Miller, Greg; O’Byrne, Paul; Sandford, Andrew; Sears, Malcolm; Subbarao, Padmaja; Turvey, Stuart

CHILD Operating Grant

2013 - 2015

Sears, Malcolm

Do indoor exposures to phthalates act independently or as an adjuvant in the development of inflammation and allergic disease?

2011 - 2012

Takaro, Timothy

Expansion of existing capacity of immunology platform to support Canadian Healthy Infant Longitudinal Development study (birth cohort)

2006 - 2008

Kollmann, Tobias; Turvey, Stuart

Gender-related biologic and sociologic impact of obesity

2005 - 2006

Becker, Allan; Benoit, Cecilia; Dean, Heather; Gounni, Abdel; Marchessault, Gail; Sellers, Elizabeth; Taylor, Carla

Improved Tools for Assessing Long-Term Indoor and Outdoor Exposures in Epidemiologic Studies of Allergy and Asthma & Repeat Home Visits and Alternative Sampling Techniques in the Mini-CHILD Study (Mini-CHILD II)

2009 - 2011

Allen, Ryan; Beischlag, Tim; Brauer, Michael; Brook, Jeff; Kollmann, Tobias; Lanphear, Bruce; Scott, James; Subbarao, Padmaja; Takaro, Timothy; Wheeler, Amanda

Infant Inflammatory Markers and Lung Function

2005 - 2006

Post, Martin; Ratjen, Felix; Sears, Malcolm; Subbarao, Padmaja

Mini-CHILD: AllerChip – Development, Validation and Implementation of a Microarray Genotyping Tool for Allergy and Asthma Research

2007 - 2009

Abugharbieh, Rafeed; Sandford, Andrew; Tebbutt, Scott; Wilkinson, Mark; Zamar, Ruben

Mini-CHILD: Assessment of the home environment (Success Stories profile)

2007 - 2009

Allen, Ryan; Brauer, Michael; Kollmann, Tobias; Scott, James; Subbarao, Padmaja; Takaro, Timothy; Turvey, Stuart

Mini-CHILD: Development of objective measurement of airway inflammation and lung function in infants (Success Stories profile)

2007 - 2009

Adamko, Darryl; Befus, Dean; Post, Martin; Ratjen, Felix; Subbarao, Padmaja

Mini-CHILD Environment – Assessment of Land Use Regression (Success Stories profile)

2007 - 2009

Allen, Ryan; Becker, Allan; Brauer, Michael; Carlsten, Chris; Chan-Yeung, Moira

Mini-CHILD: Environmental assessment of molecular genetic characterization of microbes in outdoor and indoor air and dust

2007 - 2009

Brook, Jeff; Dell, Sharon; Gold, Diane; Nakatsu, Cindy; Scott, James; Scott, Jeremy; Sears, Malcolm; Seifert, Keith; Silverman, Frances; Summerbell, Richard; Takaro, Timothy; Untereiner, Wendy

Mini-CHILD: Psychosocial Assessment and Epigenetics (Success Stories profile)

2007 - 2009

Chen, Edith; Kobor, Michael; Miller, Greg

Mini-CHILD: Recruitment

2007 - 2009

Kollmann, Tobias; Turvey, Stuart

Moving forward with birth cohort research in Canada: The legal and ethical foundations for the CHILD study

2006 - 2008

Caulfield, Timothy; Ries, Nola

Ontogeny and genetic polymorphisms of the innate immune system intersecting in asthma (Success Stories profile)

2007 - 2009

Kollmann, Tobias; Turvey, Stuart

Phthalate Exposure in Canadian Children during the First Three Years of Life

2011 - 2014

Takaro, Timothy; Wheeler, Amanda

Mini-CHILD: Psycho-social Assessment and Epigenetics

2007 - 2009

Chen, Edith; Miller, Greg

The Canadian Healthy Infant Longitudinal Development (CHILD) Study

2007 - 2016

Allen, Ryan; Becker, Allan; Befus, Dean; Brauer, Michael; Brook, Jeff; Chen, Edith; Cyr, Michael; Daley, Denise; Dell, Sharon; Denburg, Judah; Elliott, Susan; Grasemann, Hartmut; HayGlass, Kent; Hegele, Richard; Holness, D.; Kobor, Michael; Kollmann, Tobias; Kozyrskyj, Anita; Laprise, Catherine; Larché, Mark; Lou, Wendy; Macri, Joseph; Mandhane, Piush; Martinez, Fernando; Miller, Greg; Moqbel, Redwan; Moraes, Theo; Paré, Peter; Ramsey, Clare; Ratjen, Felix; Ritchie, Bruce; Sandford, Andrew; Scott, James; Scott, Jeremy; Sears, Malcolm; Silverman, Frances; Sly, Peter; Stanojevic, Sanja; Subbarao, Padmaja; Takaro, Timothy; Tang, Patrick; Tebbutt, Scott; To, Teresa; Turvey, Stuart; von Mutius, Erika; Becker, Allan; Brauer, Michael; Cyr, Michael; de Souza, Russell; Denburg, Judah; Elliott, Susan; Hystad, Perry; Kumar, Rajesh; Stearns, Jennifer; Surette, Michael

Understanding the Impact of Maternal and Infant Nutrition on Infant/Child Health

2014 - 2015

Anand, Sonia;

A feasibility study to develop an exposure model for indoor air contaminants and to collect genetic data on an asthmatic cohort

2005 - 2006

Dufresne, Andre; Infante-Rivard, Claire

Collaboration between the CHILD Study and START study (Annual Report story)

2011 - 2013

Subbarao, Padmaja