Translating the Diabetes Prevention Program lifestyle intervention for weight loss into primary care: a randomized trial - PubMed (original) (raw)
Randomized Controlled Trial
Translating the Diabetes Prevention Program lifestyle intervention for weight loss into primary care: a randomized trial
Jun Ma et al. JAMA Intern Med. 2013.
Abstract
Background: The Diabetes Prevention Program (DPP) lifestyle intervention reduced the incidence of type 2 diabetes mellitus (DM) among high-risk adults by 58%, with weight loss as the dominant predictor. However, it has not been adequately translated into primary care.
Methods: We evaluated 2 adapted DPP lifestyle interventions among overweight or obese adults who were recruited from 1 primary care clinic and had pre-DM and/or metabolic syndrome. Participants were randomized to (1) a coach-led group intervention (n = 79), (2) a self-directed DVD intervention (n = 81), or (3) usual care (n = 81). During a 3-month intensive intervention phase, the DPP-based behavioral weight-loss curriculum was delivered by lifestyle coach-led small groups or home-based DVD. During the maintenance phase, participants in both interventions received lifestyle change coaching and support remotely-through secure email within an electronic health record system and the American Heart Association Heart360 website for weight and physical activity goal setting and self-monitoring. The primary outcome was change in body mass index (BMI) (calculated as weight in kilograms divided by height in meters squared) from baseline to 15 months.
Results: At baseline, participants had a mean (SD) age of 52.9 (10.6) years and a mean BMI of 32.0 (5.4); 47% were female; 78%, non-Hispanic white; and 17%, Asian/Pacific Islander. At month 15, the mean ± SE change in BMI from baseline was -2.2 ± 0.3 in the coach-led group vs -0.9 ± 0.3 in the usual care group (P < .001) and -1.6 ± 0.3 in the self-directed group vs usual care (P = .02). The percentages of participants who achieved the 7% DPP-based weight-loss goal were 37.0% (P = .003) and 35.9% (P = .004) in the coach-led and self-directed groups, respectively, vs 14.4% in the usual care group. Both interventions also achieved greater net improvements in waist circumference and fasting plasma glucose level.
Conclusion: Proven effective in a primary care setting, the 2 DPP-based lifestyle interventions are readily scalable and exportable with potential for substantial clinical and public health impact.
Trial registration: clinicaltrials.gov Identifier: NCT00842426.
Conflict of interest statement
Dr. Stafford reports that he has provided consulting services to Mylan Pharmaceuticals in the past. The remaining authors declare that they have no competing interests.
Figures
Figure 1
Screening, Randomization, and Assessments of Study Participants
Figure 2
Estimated Mean (±SE) Weight Change over a 15-Month Period in the Intention-to-Treat Population, Overall and by Sex
Figure 3
Categorical Weight Loss at 6 and 15 Months in the Intention-to-Treat Population
Comment in
- Obesity: finding weight loss strategies that work in primary care.
Wilson C. Wilson C. Nat Rev Endocrinol. 2013 Mar;9(3):126. doi: 10.1038/nrendo.2012.244. Epub 2013 Jan 8. Nat Rev Endocrinol. 2013. PMID: 23296170 No abstract available. - Efficacy vs effectiveness.
Pagoto SL, Lemon SC. Pagoto SL, et al. JAMA Intern Med. 2013 Jul 8;173(13):1262-3. doi: 10.1001/jamainternmed.2013.6521. JAMA Intern Med. 2013. PMID: 23836268 No abstract available. - Efficacy vs effectiveness--reply.
Ma J, Kramer MK, Ciechanowski P. Ma J, et al. JAMA Intern Med. 2013 Jul 8;173(13):1263-4. doi: 10.1001/jamainternmed.2013.7065. JAMA Intern Med. 2013. PMID: 23836269 No abstract available.
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