[1] Univ Witwatersrand, Ctr Hlth Policy, Sch Publ Hlth, Johannesburg, South Africa
[2] Univ Witwatersrand, Fac Hlth Sci, Occupat Therapy Dept, Johannesburg, South Africa
[3] Gauteng Dept Hlth, Johannesburg, South Africa
[4] Univ Witwatersrand, Sch Publ Hlth, Epidemiol & Biostat Div, Johannesburg, South Africa
[5] South African Med Res Council, Hlth Syst Res Unit, Cape Town, South Africa
[6] Stellenbosch Univ, Dept Psychiat, Cape Town, South Africa
[7] Univ Witwatersrand, Sch Clin Med, Dept Psychiat, Johannesburg, South Africa