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Journal of Obesity
Volume 2014 (2014), Article ID 345941, 7 pages
Research Article

Preliminary Efficacy of Group Medical Nutrition Therapy and Motivational Interviewing among Obese African American Women with Type 2 Diabetes: A Pilot Study

1Department of Surgery, Meharry Medical College, 1005 Dr. D. B. Todd, Nashville, TN 37208, USA
2Department of Family and Consumer Sciences, College of Agriculture, Human and Natural Sciences, Tennessee State University, 224 Humphries Hall, 3500 John A. Merritt Boulevard, Nashville, TN 37209, USA
3Department of Biostatistics, Vanderbilt University Medical Center, S-2323 Medical Center North, Nashville, TN 37232-2158, USA
4National Health Care for the Homeless Council, P.O. Box 60427, Nashville, TN 37206, USA

Received 19 May 2014; Revised 22 July 2014; Accepted 31 July 2014; Published 28 August 2014

Academic Editor: Bernhard H. Breier

Copyright © 2014 Stephania T. Miller et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Objective. To assess the efficacy and acceptability of a group medical nutritional therapy (MNT) intervention, using motivational interviewing (MI). Research Design & Method. African American (AA) women with type 2 diabetes (T2D) participated in five, certified diabetes educator/dietitian-facilitated intervention sessions targeting carbohydrate, fat, and fruit/vegetable intake and management. Motivation-based activities centered on exploration of dietary ambivalence and the relationships between diet and personal strengths. Repeated pre- and post-intervention, psychosocial, dietary self-care, and clinical outcomes were collected and analyzed using generalized least squares regression. An acceptability assessment was administered after intervention. Results. Participants (n = 24) were mostly of middle age (mean age 50.8 ± 6.3) with an average BMI of 39 ± 6.5. Compared to a gradual pre-intervention loss of HbA1c control and confidence in choosing restaurant foods, a significant post-intervention improvement in HbA1c (P = 0.03) and a near significant (P = 0.06) increase in confidence in choosing restaurant foods were observed with both returning to pre-intervention levels. 100% reported that they would recommend the study to other AA women with type 2 diabetes. Conclusion. The results support the potential efficacy of a group MNT/MI intervention in improving glycemic control and dietary self-care-related confidence in overweight/obese AA women with type 2 diabetes.