1. Centre for Social Science Research, University of Cape Town, Cape Town, South Africa
2. Department of Social Policy and Intervention, University of Oxford, Oxford, UK
3. Department of Sociology, University of Cape Town, Cape Town, South Africa
4. Institute for Life Course Health Research, Faculty of Medicine and Health Sciences, Stellenbosch University, Stellenbosch, South Africa
5. Institute for Global Health, University College London, London, UK
6. Department of Psychiatry and Mental Health, University of Cape Town, Cape Town, South Africa