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The Clinical and Cost Effectiveness of Medical Nutrition Therapy for Patients with Type 2 Diabetes Mellitus  

Cho, Youn-Yun (Department of Dietetics, Samsung Medical Center)
Lee, Moon-Kyu (Division of Endocrinology and Metabolism, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine)
Jang, Hak-Chul (Department of Internal Medicine, College of Medicine, Seoul National University)
Rha, Mi-Yong (Department of Dietetics, Samsung Medical Center)
Kim, Ji-Young (Department of Dietetics, Samsung Medical Center)
Park, Young-Mi (Department of Nutrition Care Services, Seoul National University of Bundang Hospital)
Sohn, Cheong-Min (Major in Food & Nutrition, Wonkwang University, Research institute of Human Resources Development, Wonkwang University)
Publication Information
Journal of Nutrition and Health / v.41, no.2, 2008 , pp. 147-155 More about this Journal
Abstract
Medical nutrition therapy (MNT) is considered a keystone of medical treatment of chronic diseases. However, only few studies have evaluated medical and economical outcome of MNT. The study was performed on the patient with type 2 diabetes mellitus to evaluate the effect of clinical and cost-effective outcomes of MNT. Subjects from two general hospitals were randomly assigned to two different groups; One receiving basic nutritional education (BE) (n = 35), and the other receiving intensive nutritional education (IE) (n = 32) for a 6-month clinical trial. The group which received BE had a single visit with a dietitian, while the other group which received IE had an initial visit with a dietitian addition to two visits during the first 4 weeks of the study periods. Anthropometric parameters, blood components, and dietary intake were measures at the beginning of study period and after 6 month. Cost-effective analysis included direct labor costs, educational materials and medication cost difference during 6 months. After 6 month, subjects from IE group showed significant reduction of body weight (p <0.05) and systolic blood pressure (p <0.05), whereas BE group did not show any significant changes. Result from biochemical indices showed glycated hemoglobin concentration was significantly reduced by 0.7% (p <0.05) only in the IE group. The ratio of energy intake to prescribed energy intake decreased significantly in both groups (p <0.05). Mean time taken for a dietitian to educate the subject was 67.9 ${\pm}$ 9.3 min/person for BE group, while 96.4 ${\pm}$ 12.2 min/person for IE group. Mean number of educational materials was 1.9 ${\pm}$ 0.7/person for BE group and 2.5 ${\pm}$ 0.7/person for IE group. Change in glycated hemoglobin level along the 6 month period of study can be achieved with an investment of \88,510/% by implementing BE and \53,691/% by implementing IE. Considering the net cost-effect of blood glucose control and HbA Ic, IE which provides MNT by dietitian had a cost efficiency advantage than that of BE. According to this study, MNT provided by dietitian had a significant improvements in medical and clinical outcomes compared to that of BE intervention. Therefore, MNT protocol should be performed by systemic intensive nutrition care by dietitian in clinical setting to achieve good therapeutic results of DM with lower cost.
Keywords
type 2 diabetes mellitus; medical nutrition therapy; cost- effectiveness; nutrition education.;
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Times Cited By KSCI : 4  (Citation Analysis)
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