Ten years later we attempted to locate and re-interview this cohort of 1396 offenders (15-year follow-up). An institutional review board approved the protocol. The primary data source for locating clients was Screening Program record data, but other databases were also used. Bilingual (English and Spanish) staff used a comprehensive location protocol, including a letter sequence, telephone calls, and home visits. Once located, willing participants provided written informed consent. Staff followed written procedures for persuading clients to participate, and the participants were paid $100 to complete the interview process. Comprehensive baseline interviews were scheduled once informed consent was given. A list of identifiers for all subjects, who during the tracking process died or were not located was submitted to the Centers for Disease Control and Prevention in January 2008. This list was matched to the National Death Index, and 100 deaths of subjects originally interviewed at the time of the 5-year follow-up were identified. Three hundred ninety-one were not located, and 718 were interviewed (Figure 1). Of those interviewed, three subjects provided incomplete information, and 132 did not meet inclusion criteria
