The postcore adherence/maintenance phase was less structured than the core curriculum. The Lifestyle Resource Core developed a variety of lessons and participant handouts, and lifestyle coaches were encouraged to use materials related to the topics of greatest interest and concern to their individual participants. Sessions were typically shorter (∼15–45 min), but the framework of the maintenance sessions paralleled that of the core curriculum. The “DPP Lifestyle Intervention Manual for Contacts After Core” (copyright 1996; http://www.bsc.gwu.edu/dpp/manuals.htmlvdoc) provides further guidelines for implementing the maintenance phase of the intervention.