Reduced progression to type 2 diabetes from impaired glucose tolerance after a 2-day in-hospital diabetes educational program: the Joetsu Diabetes Prevention Trial.
The effects of a 2-day in-hospital diabetes educational program aimed at preventing or delaying progression to type 2 diabetes in individuals with impaired glucose tolerance (IGT) were examined in the Joetsu Diabetes Education Prevention Trial. Subjects with IGT were randomly assigned to 1- short-term hospitalization with diabetes education and support program (STD, n=143); 2- nonhospitalization with diabetes education and support program (DES, n=141) and 3- neither hospitalization nor education program (control, n=142). After a mean follow-up of 3.1 years, diabetes incidence was 8.0, 10.7, and 13.2 cases/100 person-years for STD, DES, and controls, respectively. Compared to the control group, diabetes incidence was 42% lower in the STD group and 27% lower in the DES group. Diabetes incidence was also 21% lower in the STD group compared to the DES group. These results suggest that a diabetes education and support program conducted every 3 months in patients with IGT can prevent or delay the onset of diabetes and is more effective when combined with a 2-day in-hospital program.