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1 "Maria Medeleanu"
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COVID-19: Cohort Profile
Cohort profile: investigating SARS-CoV-2 infection and the health and psychosocial impact of the COVID-19 pandemic in the Canadian CHILD Cohort
Rilwan Azeez, Larisa Lotoski, Aimée Dubeau, Natalie Rodriguez, Myrtha E. Reyna, Tyler Freitas, Stephanie Goguen, Maria Medeleanu, Geoffrey L. Winsor, Fiona S. L. Brinkman, Emily E. Cameron, Leslie Roos, Elinor Simons, Theo J. Moraes, Piush J. Mandhane, Stuart E. Turvey, Shelly Bolotin, Kim Wright, Deborah McNeil, David M. Patrick, Jared Bullard, Marc-André Langlois, Corey R. Arnold, Yannick Galipeau, Martin Pelchat, Natasha Doucas, Padmaja Subbarao, Meghan B. Azad
Epidemiol Health. 2023;45:e2023091.   Published online October 13, 2023
DOI: https://doi.org/10.4178/epih.e2023091
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  • 3 Web of Science
  • 3 Crossref
AbstractAbstract AbstractSummary PDFSupplementary Material
Abstract
The coronavirus disease 2019 (COVID-19) pandemic has affected all Canadian families, with some impacted differently than others. Our study aims to: (1) determine the prevalence and transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection among Canadian families, (2) identify predictors of infection susceptibility and severity of SARS-CoV-2, and (3) identify health and psychosocial impacts of the COVID-19 pandemic. This study builds upon the CHILD Cohort Study, an ongoing multi-ethnic general population prospective cohort consisting of 3,454 Canadian families with children born in Vancouver, Edmonton, Manitoba, and Toronto between 2009 and 2012. During the pandemic, CHILD households were invited to participate in the CHILD COVID-19 Add-On Study involving: (1) brief biweekly surveys about COVID-19 symptoms and testing; (2) quarterly questionnaires assessing COVID-19 exposure and testing, vaccination status, physical and mental health, and pandemic-driven life changes; and (3) in-home biological sampling kits to collect blood and stool. In total, 1,462 households (5,378 participants) consented to the CHILD COVID-19 Add-On Study: 2,803 children (mean±standard deviation [SD], 9.0±2.7 years; range, 0-17 years) and 2,576 adults (mean±SD, 43.0±6.5 years; range, 18-85 years). We will leverage the wealth of pre-pandemic CHILD data to identify risk and resilience factors for susceptibility and severity to the direct and indirect pandemic effects. Our short-term findings will inform key stakeholders and knowledge users to shape current and future pandemic responses. Additionally, this study provides a unique resource to study the long-term impacts of the pandemic as the CHILD Cohort Study continues.
Summary
Key Message
· This study of 1,462 Canadian families (5,378 individuals) leverages a decade of extensive pre-pandemic CHILD Cohort Study data to identify risk and resilience factors for susceptibility to the direct and indirect effects of the COVID-19 pandemic. · Our short-term findings will inform key stakeholders and knowledge users to shape current and future pandemic responses. · This study provides a unique resource to study the long-term impacts of the pandemic as the CHILD Cohort Study continues.

Citations

Citations to this article as recorded by  
  • Predictors of SARS-CoV-2 anti-Spike IgG antibody levels following two COVID-19 vaccine doses among children and adults in the Canadian CHILD Cohort
    Rilwan Azeez, Spencer R. Ames, Larisa C. Lotoski, Geoffrey L. Winsor, Corey R. Arnold, Yannick Galipeau, Martin Pelchat, Stephanie Goguen, Elinor Simons, Theo J. Moraes, Piush J. Mandhane, Stuart E. Turvey, Shelly Bolotin, David M. Patrick, Jared Bullard,
    Vaccine.2026; 79: 128342.     CrossRef
  • Identifying predictors of use of mental health services and supports during the COVID-19 pandemic: an analysis of the CHILD COVID-19 Add-on Study
    Scott James Ramsay, Hunter Lloyd, Manon Ranger, Stuart Turvey, Elinor Simons, Larisa Lotoski, Theo Moraes, Leslie E. Roos, Padmaja Subbarao, Meghan B. Azad
    Frontiers in Health Services.2026;[Epub]     CrossRef
  • From fetus to 8: the CHILD Cohort Study
    Kozeta Miliku, Myrtha E Reyna, Maria Medeleanu, Ruixue Dai, Aimee Dubeau, Diana L Lefebvre, Kim Wright, Bassel Dawod, Marshall Beck, Elissa Brooks, Michael Kobor, Qingling Duan, Jeffrey R Brook, Wendy Lou, Fiona S L Brinkman, Geoffrey L Winsor, Justin Coo
    American Journal of Epidemiology.2025; 194(7): 1984.     CrossRef
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