[1] Univ N Carolina, Sch Med, Dept Psychiat, Chapel Hill, NC 27599 USA
[2] Univ N Carolina, Sch Publ Hlth, Dept Epidemiol, Chapel Hill, NC 27599 USA
[3] Univ N Carolina, Sch Med, Div Infect Dis, Dept Med, Chapel Hill, NC 27599 USA
[4] Duke Univ, Dept Publ Policy, Durham, NC USA
[5] Duke Univ, Dept Community & Family Med, Durham, NC USA
[6] Duke Univ, Hlth Inequal Program, Durham, NC USA