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Two-year weight-loss maintenance in primary care-based Diabetes Prevention Program lifestyle interventions.

Description

Xiao L, Yank V, Wilson SR, Lavori PW, Ma J., Nutr Diabetes. 3:e76. doi: 10.1038/nutd.2013.17., 2013 Jun 24

Abstract

Objective: To investigate whether the effects on weight loss and cardiometabolic risk factor reduction of two technology-mediated lifestyle interventions for 15 months in a primary care-based translation trial sustained at 24 months (that is, 9 months after the end of intervention).

Design: This study analyzed data from an extended follow-up of participants in the original 'E-LITE' (Evaluation of Lifestyle Interventions to Treat Elevated Cardiometabolic Risk in Primary Care)-randomized controlled trial, which demonstrated the effectiveness of two adapted Diabetes Prevention Program (DPP) lifestyle interventions compared with usual primary care.

Subjects: E-LITE randomized 241 overweight or obese participants with pre-diabetes and/or metabolic syndrome to receive usual care alone (n=81) or usual care plus a coach-led (n=79) or self-directed intervention (n=81). The interventions provided coach-led group behavioral weight-loss treatment or a take-home, self-directed DVD using the same 12-week curriculum, followed by 12 additional months of technology-mediated coach contact and self-monitoring support. Participants received no further intervention after month 15. A blinded assessor conducted 24-month visits by following the measurement protocols of the original trial.

Measurements include weight and cardiometabolic risk factors (waist circumference, fasting plasma glucose, resting blood pressure, triglycerides, high- and low-density lipoprotein cholesterol, total cholesterol and triglyceride to high-density lipoprotein cholesterol ratio).

Results: At month 24, mean±s.e. changes in body mass index (trial primary outcome) and weight (kg) from baseline were -1.9±0.3 (P=0.001) and -5.4±0.9 (P<0.001) in the coach-led intervention, and -1.6±0.3 (P=0.03) and -4.5±0.9 (P=0.001) in the self-directed intervention, compared with -0.9±0.3 and 2.4±0.9 in the usual care group. In addition, both interventions led to a greater percentage of participants maintaining ?7% weight loss and sustained improvements in waist circumference and fasting plasma glucose levels than usual care.

Conclusion: This study shows sustained benefits of the two primary care-based, technology-mediated DPP lifestyle interventions. The findings warrant replication in long-term studies involving diverse populations.

 

Pubmed Abstract

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Associated Topics

  • Diabetes, Insulin Resistance and Metabolic Syndrome
  • Disease Management
  • Health Services
  • Obesity

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