© American Diabetes Association ®, Inc., 2004 Hypothesis 5. Treatment of depression may reduce the risks of diabetes and its complications.
Lustman PJ, Griffith LS, Freedland KE, Kissel SS, Clouse RE: Cognitive behavior therapy for depression in type 2 diabetes: a randomized, controlled trial. Ann Intern Med 129: 613621, 1998
The preceding commentaries have reported evidence for the negative effects of depression on those with diabetes, e.g., poorer glycemic control and increased complications, as well as an elevated risk for development of diabetes in depressed subjects. Therefore, it is of great interest to know whether the risks conferred by depression can be modified if depression is successfully treated. Given the association between the above risks, lifestyle choices, and behaviors, it is likely that depression treatment that targets these factors may be particularly helpful, especially over the long term. Cognitive behavior therapy (CBT) specifically addresses mistaken, maladaptive, or ruminative cognitions about one's self, one's relationships, and one's present and future circumstances. More accurate and helpful cognitive responses are formulated, and behavior is addressed in terms of adaptive problem-solving, improving relationships, and increasing enjoyable as well as productive activities.46,47 CBT has been shown to improve depression in those with and without medical illness in numerous studies.4850 The first evidence that depression in patients with type 2 diabetes can be successfully treated by CBT was provided by this randomized, controlled trial reported by Lustman et al. For this study, 51 patients with type 2 diabetes and comorbid major depression were randomized to receive biweekly diabetes education either alone or in combination with 10 weekly CBT sessions for depression. Beck Depression Inventory score and glycated hemoglobin level were measured at the end of treatment and again 6 months after treatment. The dropout rate was low, and a completer analysis was used.
The percentage of
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