Education or the promise of an incentive improved initial follow-up. Education was superior to an incentive for the completion of therapy. Fairly modest strategies provided in jail can improve adherence. Further links between jail health services and community care should be explored.

Jail could be an appropriate venue in which to provide cancer screening for a high-risk population. Inmates were receptive to jail-based screening.

Continuity of health care among the formerly incarcerated is an emerging public health challenge. We used data from the San Francisco County Jail to determine whether discharge planning improves access to care on release. Inmates who were HIV positive and received discharge planning were 6 times more likely to have a regular source of care in the community compared with inmates with other chronic medical conditions, and they were as likely to have a regular source of care compared with the general San Francisco population.