[1] Johns Hopkins Sch Publ Hlth, Dept Int Hlth, Baltimore, MD 21205 USA
[2] MAP Ctr Urban Hlth Solut, Unity Hlth Toronto, Toronto, ON, Canada
[3] Univ Toronto, Inst Med Sci, Toronto, ON, Canada
[4] Johns Hopkins Sch Publ Hlth, Dept Epidemiol, Baltimore, MD USA
[5] Univ Johannesburg, Pan African Ctr Epidem Res PACER, South African Med Res Council, Extramural Unit, Johannesburg, South Africa
[6] Univ Johannesburg, Fac Hlth Sci, Dept Environm Hlth, Johannesburg, South Africa
[7] Penn State Univ, Dept Stat, University Pk, PA USA
[8] Conseil Natl Lutte Sida, Dakar, Senegal
[9] Partners Hlth & Dev Africa, Nairobi, Kenya
[10] Univ Toronto, Dept Med, Div Infect Dis, Toronto, ON, Canada
[11] Univ Toronto, Inst Hlth Policy, Dalla Lana Sch Publ Hlth, Management & Evaluat & Div Epidemiol, Toronto, ON, Canada
[12] ICES, Toronto, ON, Canada