Impart APN
Participants randomized to the Impart arm could choose per partner between sell‐tell notification or having an Impart APN‐trained nurse and community outreach healthcare provider work as a team to locate and notify their partners without revealing the identity of who had named them. With the latter choice, Impart notifiers initially contacted named partners by telephone and identified themselves as research‐affiliated health workers with important information about their health that needed to be shared in person. Partners who agreed to meet were asked to choose a location. Notification by telephone was delivered only as a last resort when circumstances prevented in‐person notification or a partner insisted on learning the reason for the telephone call. To locate partners whose contact information was unknown or could not be reached by telephone, APN notifiers visited the partner's residence, known “hang‐out spots” or other address(es) as necessary to find them. Notifiers were instructed never to reveal why they were searching for the person but only to say that they had some important information for them. Once contact was made at a private location, partners were advised of their possible shared exposure to HIV. To protect the confidentiality of incarcerated index participants, APN notifiers were given no information about the index participant and thus could not reveal their names or provide identifying information during this meeting.