Birth to Twenty study

STATUS: Current
PROJECT LEADER:Richter, L.M. (Prof Linda)
OTHER TEAM MEMBERS: Joseph, PK (Mr Philip), De Kock, C.J. (Ms Cilna), Mathambo, N (Ms Nomonde), Nyawane, CL (Ms Lebo)
RESEARCH OUTPUTS: Predictors of postnatal depression in an urban South African cohort, Factors influencing enrolment: a case study from Birth to Twenty, the 1990 birth cohort in Soweto-Johannesburg, Low birthweight and subsequent emotional and behavioural outcomes in 12-year-old children in Soweto, South Africa: findings from Birth to Twenty, Adolescents in the city: material and social living conditions in Johannesburg-Soweto, South Africa, Maternal and child undernutrition: consequences for adult health and human capital, Are there short cuts to pubertal assessments? Self-reported and assessed group differences in pubertal development in African adolescents, Improving the developmental outcome of babies, "Patterns of residential mobility amongst children in greater Johannesburg: observations from the Birth to Twenty cohort", Health and social scientists need to weigh in, Developmental potential in the first 5 years for children in developing countries, Cohort profile: Mandela's children: the 1990 birth to twenty study in South Africa, Field report: panel studies in developing countries: case analysis of sample attrition over the past 16 years within the Birth to Twenty cohort in Johannesburg, South Africa, Young adults, the target of below-the-line advertising, The silent truth of teenage pregnancies: Birth to Twenty cohort's next generation, The many kinds of sexual abuse of young children, Doing something: the initiation of sexual abuse services in Soweto, Transition from birth to ten to birth to twenty: the South African cohort reaches 13 years of age, Strengthening infants and children: South African perspectives, Birth to twenty, Very young adolescents: a longitudinal perspective from South Africa: the Birth to Twenty study


Birth to Twenty is a longitudinal birth cohort sutdy of more than 3200 children and their families in Soweto-Johannesburg, 74% of whom have been followed up from before birth to their current age of 16 years. The original emphasis of the study was on determinants of health, psychological adjustment and educational achievement of children in an urban environment in the context of socioeconomic, household, family, peer and psychological factors. The current foci of the study are pubertal maturation, coital debut and sexual risks, the influence of future orientation and family support on educational achievement, and risks of educational failure and drop out. The cohort is seen twice a year, once at home and once at the data collection centre. A series of physical, physiological, social, psychological and educational measures are made among the adolescent participants, their parents, and increasingly, their own children. This study is funded by the Wellcome Trust.