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Published online July 9, 2007
Diabetes Care 30:2471-2477, 2007
DOI: 10.2337/dc06-2621
© 2007 by the American Diabetes Association
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Clinical Care/Education/Nutrition/Psychosocial Research
Original Article

Diabetes Personal Trainer Outcomes

Short-term and 1-year outcomes of a diabetes personal trainer intervention among youth with type 1 diabetes

Tonja R. Nansel, PHD1, Ronald J. Iannotti, PHD1, Bruce G. Simons-Morton, EDD1, Christopher Cox, PHD1, Leslie P. Plotnick, MD2, Loretta M. Clark, RN, CDE2 and Linda Zeitzoff, CPNP, CDE3

1 Division of Epidemiology, Statistics and Prevention Research, National Institute of Child Health and Human Development, National Institutes of Health, Department of Health and Human Services, Bethesda, Maryland
2 Department of Pediatric Endocrinology, Johns Hopkins Medical Center, Baltimore, Maryland
3 Diabetes Clinic, Mount Washington Pediatric Hospital, Baltimore, Maryland

Address correspondence and reprint requests to Tonja R. Nansel, PhD, 6100 Executive Blvd., Rm. 7B13R, MSC 7510, Bethesda, MD 20892-7510. E-mail: nanselt{at}mail.nih.gov

OBJECTIVE—To assess the social-cognitive, behavioral, and physiological outcomes of a self-management intervention for youth with type 1 diabetes.

RESEARCH DESIGN AND METHODS—A total of 81 youth with type 1 diabetes aged 11–16 years were randomized to usual care versus a "diabetes personal trainer" intervention, consisting of six self-monitoring, goal-setting, and problem-solving sessions with trained nonprofessionals. Assessments were completed at baseline and multiple follow-up intervals. A1C data were obtained from medical records. ANCOVA adjusting for age and baseline values were conducted for each outcome.

RESULTS—At both short-term and 1-year follow-up, there was a trend for an overall intervention effect on A1C (short-term F = 3.71, P = 0.06; 1-year F = 3.79, P = 0.06) and a significant intervention-by-age interaction, indicating a great effect among older than younger youth (short-term F = 4.78, P = 0.03; 1-year F = 4.53, P = 0.04). Subgroup analyses demonstrated no treatment group difference among younger youth but a significant difference among the older youth. No treatment group differences in parent or youth report of adherence were observed.

CONCLUSIONS—The diabetes personal trainer intervention demonstrated significant effects in A1C among middle adolescents.


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Copyright © 2007 by the American Diabetes Association.