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Variations in the Care of Elderly Persons With Diabetes Among Endocrinologists, General Internists, and Geriatricians

^a Section of General Internal Medicine, Department of Medicine
^b Diabetes Research and Training Center
^c Pritzker School of Medicine, University of Chicago, Illinois

Marshall H. Chin, University of Chicago, Section of General Internal Medicine, 5841 South Maryland Avenue, MC 2007, Chicago, IL 60637 E-mail: mchin{at}medicine.bsd.uchicago.edu.

Decision Editor: William B. Ershler, MD

Background. The American Diabetes Association (ADA) clinical practice recommendations have been widely promoted, but they lack a geriatric-specific approach to care. We aimed to determine the style of care that endocrinologists, general internists, and geriatricians provided to their elderly patients with diabetes and to what extent these medical professionals adhered to the ADA standards.

Methods. We performed a retrospective cohort study of a stratified sample of 531 diabetic patients aged 65 years and older from the endocrinology, general internal medicine, and geriatrics clinics of an urban academic medical center.

Results. Patients of geriatricians were older, had higher comorbidity, and were more likely to be demented. The average number of diabetic complications was similar across the specialties, although patients of endocrinologists had higher prevalence of neuropathy and retinopathy compared with patients of geriatricians. Endocrinologists were more likely to use insulin, multiple types of insulin, and combined oral hypoglycemic and insulin therapies. Most patients had hemoglobin A1c measured, and average values were similarly high across specialties at 8.6%. Blood pressures were above 130/85 mm Hg in 85% of the patients. All specialties rarely measured urine microalbumin; geriatricians seldom performed fractionated cholesterol tests, and ophthalmology visits occurred in only half of the patients.

Conclusion. Endocrinologists had the most aggressive, complex diabetes treatment regimens, although geriatricians had older patients with more dementia and lower prevalence of microvascular complications. Average hemoglobin A1c levels and blood pressures were higher than recommended among patients of all three specialties. Screening for diabetic complications and hyperlipidemia was lower than advised.

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