OBJECTIVE— To evaluate the efficacy of the group program PREDIAS for diabetes
prevention.
RESEARCH DESIGN AND METHODS— PREDIAS consists of 12 lessons and aims at
lifestyle modification. The control group received written information about diabetes prevention.
In this study, a total of 182 persons with an elevated diabetes risk participated (aged 56.3
10.1 years, 43% female, and BMI 31.5 5.3 kg/m2).
RESULTS— After 12 months, weight loss was significantly higher (P 0.001) in PREDIAS
than in the control group (3.8 5.2 vs. 1.4 4.09 kg). There were also significant effects
(P 0.001) on fasting glucose (control group 1.8 13.1 mg/dl vs. PREDIAS 4.3 11.3
mg/dl), duration of physical activity per week (control group 17.9 63.8 min vs. PREDIAS
46.6 95.5 min; P 0.03), and eating behavior.
CONCLUSIONS— PREDIAS significantly modified lifestyle factors associated with an elevated
diabetes risk.