Collected Dataset / QLSCD_Datacollection_1998

• Canada

• Some children were excluded because of constraints linked to the sample frame or major health problems, such as premature babies whose gestation lasted less than 24 weeks or more than 42 weeks and babies whose sex was unknown at participant selection.

Mothers living in the sociosanitary areas 10 (North-of-Quebec), 17 (Cree territory) and 18 (Inuit territory) and mothers living on Indian reserves were excluded.

Minimum age: 59 gestational weeks at the beginning of each collection period at time 1

Maximum age: 60 gestational weeks at the beginning of each collection period at time 1

• General population

• Selected sample

Data collection 1998: 2,120 participants

Data collection 1999: 2,045 participants

Data collection 2000: 1,997 participants

Data collection 2001: 1,950 participants

Data collection 2002: 1,944 participants

Nutrition Data collection 2002: 1,550 participants

Data collection 2003: 1,776 participants

Data collection 2004: 1,529 participants

Psychomotricity Data collection 2004: 1,529 participants

Data collection 2005: 1,537 participants

Data collection 2006: 1,526 participants

Psychomotricity Data collection 2006: 1,526 participants

Data collection 2008: 1,402 participants

Health Data collection 2008-2009: 1,000 participants

Data collection 2010: 1,415 participants

Data collection 2011: 1,312 participants

Data collection 2013: 1,466 participants

Data collection 2015: 1,348 participants

Data collection 2017: 1,401 participants

Mental Health Data collection 2018: 1,245 participants

Data collection 2019: 1,323 participants

Nutrition data collection 2020: 908 participants

COVID-19 data collection 2020: 1,182 participants

Data collection 2021: 1,337 participants

Resilience data collection 2021: 1,327 participants