Data Resource Profile: The Manitoba Multigenerational Cohort

The Manitoba Multigenerational Cohort (MMC) has been developed using routinely collected and de-identified administrative healthcare data to facilitate health and social research using family-based designs.• The MMC is a population-based cohort of individuals born in the province of Manitoba, Canada, from 1974 to 2019 (n ¼ 744 265) with linkages across four generations and multiple family relationships: parents, siblings, grandparents, aunts, uncles, cousins and great-grandparents.Overall, 98% of individuals are linked to mothers; 60% are linked to fathers.• Individuals in the MMC are followed from birth until death or out-of-province migration.The median follow-up ranges from 1 year (for those born in 2019) to 27.7 years (for those born in 1974).