An outpatient-based clinical program for diabetes prevention: an update.

Objective: To update outcomes of the Diet-Exercise-Activity-Lifestyle (DEAL) program, a clinic-based diabetes prevention intervention.Methods: Changes in weight, fasting blood glucose, and 2-hour glucose after a 75-g oral glucose tolerance test were evaluated in patients who enrolled in the DEAL program between January 2007 and August 2009.Results: The 221 qualified participants had a mean age of 62 years, weight of 87.4 kg, body mass index of 31.2 kg/m2, fasting glucose level of 109 mg/dL, and 2-hour glucose value of 138 mg/dL. Among the program participants, 67% were women and 88% were white; 56% had isolated impaired fasting glucose, 5% had impaired glucose tolerance only, and 39% had both. The 6-month follow-up medical appointment was kept by 72% of program participants, but only 56% attended the 12-month visit. By 6 months after baseline, 59% had significantly lower fasting glucose concentrations, 59% had improvement in 2-hour glucose levels, and 61% had weight loss. Nearly 40%, however, were nonresp...