TY - JOUR
T1 - Predictors of Sustained Reduction in Energy and Fat Intake in the Diabetes Prevention Program Outcomes Study Intensive Lifestyle Intervention
AU - Davis, Nichola J.
AU - Ma, Yong
AU - Delahanty, Linda M.
AU - Hoffman, Heather J.
AU - Mayer-Davis, Elizabeth
AU - Franks, Paul W.
AU - Brown-Friday, Janet
AU - Isonaga, Mae
AU - Kriska, Andrea M.
AU - Venditti, Elizabeth M.
AU - Wylie-Rosett, Judith
N1 - Funding Information:
FUNDING/SUPPORT The National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) of the National Institutes of Health provided funding to the clinical centers and the Coordinating Center for the design and conduct of the study, and collection, management, analysis, and interpretation of the data (grant no. U01 DK048489 ). The Southwestern American Indian Centers were supported directly by the NIDDK , including its Intramural Research Program, and the Indian Health Service. The General Clinical Research Center Program, National Center for Research Resources, and the Department of Veterans Affairs supported data collection at many of the clinical centers. Funding was also provided by the National Institute of Child Health and Human Development ; the National Institute on Aging ; the National Eye Institute ; the National Heart, Lung, and Blood Institute ; the Office of Research on Women's Health ; the National Institute on Minority Health and Health Disparities ; the Centers for Disease Control and Prevention ; and the American Diabetes Association . The opinions expressed are those of the investigators and do not necessarily reflect the views of the funding agencies. Bristol-Myers Squibb and Parke-Davis provided additional funding and material support during the project, Lipha (Merck-Sante) provided medication, and LifeScan Inc. donated materials. McKesson BioServices Corp, Matthews Media Group Inc, and the Henry M. Jackson Foundation provided support services under subcontract with the Coordinating Center.
PY - 2013/11
Y1 - 2013/11
N2 - Background: Few lifestyle intervention studies examine long-term sustainability of dietary changes. Objective: To describe sustainability of dietary changes over 9 years in the Diabetes Prevention Program and its outcomes study, the Diabetes Prevention Program Outcomes Study, among participants receiving the intensive lifestyle intervention. Design: One thousand seventy-nine participants were enrolled in the intensive lifestyle intervention arm of the Diabetes Prevention Program; 910 continued participation in the Diabetes Prevention Program Outcomes Study. Fat and energy intake derived from food frequency questionnaires at baseline and post-randomization Years 1 and 9 were examined. Parsimonious models determined whether baseline characteristics and intensive lifestyle intervention session participation predicted sustainability. Results: Self-reported energy intake was reduced from a median of 1,876 kcal/day (interquartile range [IQR]=1,452 to 2,549 kcal/day) at baseline to 1,520 kcal/day (IQR=1,192 to 1,986 kcal/day) at Year 1, and 1,560 kcal/day (IQR=1,223 to 2,026 kcal/day) at Year 9. Dietary fat was reduced from a median of 70.4 g (IQR=49.3 to 102.5 g) to 45 g (IQR=32.2 to 63.8 g) at Year 1 and increased to 61.0 g (IQR=44.6 to 82.7 g) at Year 9. Percent energy from fat was reduced from a median of 34.4% (IQR=29.6% to 38.5%) to 27.1% (IQR=23.1% to 31.5%) at Year 1 but increased to 35.3% (IQR=29.7% to 40.2%) at Year 9. Lower baseline energy intake and Year 1 dietary reduction predicted lower energy and fat gram intake at Year 9. Higher leisure physical activity predicted lower fat gram intake but not energy intake. Conclusions: Intensive lifestyle intervention can result in reductions in total energy intake for up to 9 years. Initial success in achieving reductions in fat and energy intake and success in attaining activity goals appear to predict long-term success at maintaining changes.
AB - Background: Few lifestyle intervention studies examine long-term sustainability of dietary changes. Objective: To describe sustainability of dietary changes over 9 years in the Diabetes Prevention Program and its outcomes study, the Diabetes Prevention Program Outcomes Study, among participants receiving the intensive lifestyle intervention. Design: One thousand seventy-nine participants were enrolled in the intensive lifestyle intervention arm of the Diabetes Prevention Program; 910 continued participation in the Diabetes Prevention Program Outcomes Study. Fat and energy intake derived from food frequency questionnaires at baseline and post-randomization Years 1 and 9 were examined. Parsimonious models determined whether baseline characteristics and intensive lifestyle intervention session participation predicted sustainability. Results: Self-reported energy intake was reduced from a median of 1,876 kcal/day (interquartile range [IQR]=1,452 to 2,549 kcal/day) at baseline to 1,520 kcal/day (IQR=1,192 to 1,986 kcal/day) at Year 1, and 1,560 kcal/day (IQR=1,223 to 2,026 kcal/day) at Year 9. Dietary fat was reduced from a median of 70.4 g (IQR=49.3 to 102.5 g) to 45 g (IQR=32.2 to 63.8 g) at Year 1 and increased to 61.0 g (IQR=44.6 to 82.7 g) at Year 9. Percent energy from fat was reduced from a median of 34.4% (IQR=29.6% to 38.5%) to 27.1% (IQR=23.1% to 31.5%) at Year 1 but increased to 35.3% (IQR=29.7% to 40.2%) at Year 9. Lower baseline energy intake and Year 1 dietary reduction predicted lower energy and fat gram intake at Year 9. Higher leisure physical activity predicted lower fat gram intake but not energy intake. Conclusions: Intensive lifestyle intervention can result in reductions in total energy intake for up to 9 years. Initial success in achieving reductions in fat and energy intake and success in attaining activity goals appear to predict long-term success at maintaining changes.
KW - Diabetes prevention
KW - Diet
KW - Dietary change
KW - Dietary intake
KW - Lifestyle intervention
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U2 - 10.1016/j.jand.2013.07.003
DO - 10.1016/j.jand.2013.07.003
M3 - Article
C2 - 24144073
AN - SCOPUS:84886904606
VL - 113
SP - 1455
EP - 1464
JO - Journal of the Academy of Nutrition and Dietetics
JF - Journal of the Academy of Nutrition and Dietetics
SN - 2212-2672
IS - 11
ER -