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Cohort Acronym

Cohort type
General population-based cohort


Participant type
No diagnosis

Recruitment Period 1998 
Sample size at start or planned sample size if still recruiting 2,120  
Estimated Current Sample Size  
Age at Recruitment 5 months   
Gender Male and Female 

The main objective of QLSCD is to identify the precursors of children’s social adaptation, school adjustment, and well-being throughout their developmental trajectory. This study has information on young children’s (now young adults) health, behaviour and many other aspects of their life.

Country Canada 
Contact details
Institution name Institut de la statistique du Québec 
Principal Investiator (PI) Bertrand Perron 
Contact phone number (514) 873-4749 postes 6132 / 6126 
Address Direction des enquêtes longitudinales et sociales
Institut de la statistique du Québec
1200, ave McGill College, bureau 500
Montréal, Qc. H3B 4J8 
Funders (Core support) Fondation Lucie et André Chagnon, Ministère de la Santé et des Services sociaux du Québec, Ministère de la Famille du Québec, Ministère de l’Éducation et de l’Enseignement supérieur du Québec, Institut de la statistique du Québec, Institut de recherche Robert-Sauvé en santé et en sécurité du travail, Centre hospitalier universitaire Sainte-Justine 

Variables Collected

Brain related measures: N/A
Funtional rating: N/A
Anthropometric: Blood pressure, Height, Hip circumference, Waist circumference, Weight
Physical: Cardiovascular
Biological samples: Blood, Other, Saliva
Genotyping: Gene screening
Brain imaging: N/A
Brain banking: N/A
Lifestyle: Alcohol, Dietary habits, Physical activity, Smoking
Socio-economic: Education, Family circumstances, Housing and accommodation, Income and finances, Occupation and employment
Health service utilisation: Formal health and social care service utilisation including private care
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