In the original study (1994-1998), 256 Mexican American adults diagnosed with type 2 diabetes and 256 family members or other support persons were enrolled. For one year, the people with diabetes, along with their family members, attended small group sessions held in churches, community health clinics, adult day care centers, and schools. Information on the effectiveness of the program was collected at 3, 6, and 12 months; and annually thereafter.