[1] Univ Alberta, Fac Nursing, Edmonton, AB, Canada
[2] Univ Washington, Dept Child Family & Populat Hlth Nursing, Seattle, WA 98195 USA
[3] Univ Washington, Dept Global Hlth, Seattle, WA 98195 USA
[4] US Ctr Dis Control & Prevent CDC, Div Global HIV&TB DGHT, Nairobi, Kenya
[5] Minist Hlth, Reprod & Maternal Hlth Serv Unit, Nairobi, Kenya
[6] Kenya Govt Med Res Ctr, Nairobi, Kenya
[7] Univ Washington, Dept Epidemiol, Seattle, WA 98195 USA
[8] Univ Washington, Dept Pediat, Seattle, WA 98195 USA
[9] Univ Washington, Dept Med, Seattle, WA USA
[10] Kenyatta Hosp, Dept Res & Programs, Nairobi, Kenya