Diabetes care credit system: a model for comprehensive and optimal diabetes care

To introduce a "credit system," which empowers patients with diabetes to share in the implementation of guidelines with the health-care provider and provides credits for achievement of health variables considered essential for optimal diabetes care. We describe the credit system and the points offered for achievement of variables that assess lifestyle, glycohemoglobin, blood pressure, lipid values, measurement of urinary albumin, annual physical examination, dilated eye examination, foot examination, and electrocardiogram, use of antiplatelet therapy, and use of angiotensin receptor blocker (ARB) or angiotensin-converting enzyme (ACE) inhibitor therapy. The patient's knowledge of diabetes and nutrition was also assessed. Patients with diabetes mellitus were enrolled in the credit program during their scheduled office visits. Results were compared with those in a control group. The study enrolled 613 patients (303 male and 310 female patients), with a mean age of 59.91 +/- 13.57 years (range, 16 to 90). The control group consisted of 119 patients with diabetes (63 men and 56 women; mean age, 55.94 +/- 14.83 years) not participating in the credit system. One year after initiation of the program, analysis of the study group demonstrated high rates of implementation of guidelines: complete physical examination, 94%; foot examination, 89%; dilated eye examination, 77%; blood pressure less than 135/85 mm Hg, 78%; hemoglobin A1c less than 6%, 7%, and 8%, 26%, 58%, and 82%, respectively; serum triglycerides less than 200 mg/dL, 61%; low-density lipoprotein cholesterol less than 100 mg/dL, 49%; high-density lipoprotein cholesterol more than 35 mg/dL, 76%; use of antiplatelet therapy, 60%; quantitative urinary albumin screening, 74%; and use of ACE inhibitors or ARB, 44%. These rates of achievement of established variables for hemoglobin A1c, serum lipids, blood pressure, antiplatelet therapy, and measurement of urinary albumin were significantly higher than those in the control subjects. The described credit system demonstrates an effective and practical means to implement and achieve the necessary guidelines and target variables that are intended to lead to optimal diabetes and cardiovascular outcomes.