Multi-generational Birth Cohort
Birth to Thirty (Bt30; formerly Birth to Ten / Birth to Twenty)
About this cohort
Established in 1990 in Soweto-Johannesburg, South Africa, enrolling 3,273 singleton children born in a 7-week window — the first cohort born into democratic South Africa. Tracks the mother-child dyads on health, growth, cognition and socio-economic outcomes across the life course; renamed Birth to Twenty in 2000 and Birth to Thirty in 2020. Has completed 22+ waves of data collection and is one of Africa's longest-running birth cohorts.
Cohort-provided summary · derived from APCC directory fieldsResearch themes
Primary research themes for this cohort.
Study population
Who the cohort follows.
This cohort covers 2,100 participants in a urban setting in South Africa, spanning Birth cohort (born 1990) (all). Detailed inclusion criteria and follow-up schedule — To be confirmed.
Timeline
Milestones in the cohort record.
Key characteristics
Core descriptive metadata.
Institutions & governance
Lead institution(s); partners and governance to be confirmed.
Partner institutions & governance arrangements — To be confirmed
Nested studies & sub-cohorts
Studies built on this cohort platform.
FAIR readiness
Findable, Accessible, Interoperable, Reusable assessment.
Investigators
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Publications & evidence
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Data access & governance
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Collaboration opportunities
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Contact
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