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Diabetes prevention in the real world: effectiveness of pragmatic lifestyle interventions for the prevention of type 2 diabetes and of the impact of adherence to guideline recommendations: a systematic review and meta-analysis.

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journal contribution
posted on 21.08.2017, 10:52 by Alison J. Dunkley, Danielle H. Bodicoat, Colin J. Greaves, Claire Russell, Thomas Yates, Melanie J. Davies, Kamlesh Khunti
OBJECTIVE To summarize the evidence on effectiveness of translational diabetes prevention programs, based on promoting lifestyle change to prevent type 2 diabetes in real-world settings and to examine whether adherence to international guideline recommendations is associated with effectiveness. RESEARCH DESIGN AND METHODS Bibliographic databases were searched up to July 2012. Included studies had a follow-up of ≥12 months and outcomes comparing change in body composition, glycemic control, or progression to diabetes. Lifestyle interventions aimed to translate evidence from previous efficacy trials of diabetes prevention into real-world intervention programs. Data were combined using random-effects meta-analysis and meta-regression considering the relationship between intervention effectiveness and adherence to guidelines. RESULTS Twenty-five studies met the inclusion criteria. The primary meta-analysis included 22 studies (24 study groups) with outcome data for weight loss at 12 months. The pooled result of the direct pairwise meta-analysis shows that lifestyle interventions resulted in a mean weight loss of 2.12 kg (95% CI -2.61 to -1.63; I(2) = 91.4%). Adherence to guidelines was significantly associated with a greater weight loss (an increase of 0.3 kg per point increase on a 12-point guideline-adherence scale). CONCLUSIONS Evidence suggests that pragmatic diabetes prevention programs are effective. Effectiveness varies substantially between programs but can be improved by maximizing guideline adherence. However, more research is needed to establish optimal strategies for maximizing both cost-effectiveness and longer-term maintenance of weight loss and diabetes prevention effects.

Funding

This project was supported by the National Institute for Health Research (NIHR) Collaboration for Leadership in Applied Health Research and Care–Leicestershire, Northamptonshire and Rutland, the University of Leicester Clinical Trials Unit, and the NIHR Leicester-Loughborough Diet, Lifestyle and Physical Activity Biomedical Research Unit. C.J.G.’s time was partly supported by the NIHR (Career Development Fellowship CDF-2012-05-259).

History

Citation

Diabetes Care, 2014, 37 (4), pp. 922-933

Author affiliation

/Organisation/COLLEGE OF MEDICINE, BIOLOGICAL SCIENCES AND PSYCHOLOGY/School of Medicine/Department of Cardiovascular Sciences

Version

VoR (Version of Record)

Published in

Diabetes Care

Publisher

American Diabetes Association

eissn

1935-5548

Copyright date

2014

Available date

21/08/2017

Publisher version

http://care.diabetesjournals.org/content/37/4/922

Notes

This article has a correction. Please see: Diabetes Prevention in the Real World: Effectiveness of Pragmatic Lifestyle Interventions for the Prevention of Type 2 Diabetes and of the Impact of Adherence to Guideline Recommendations: A Systematic Review and Meta-analysis. Diabetes Care 2014;37:922–933 - June 01, 2014 http://care.diabetesjournals.org/content/37/6/1775;This article contains Supplementary Data online at http://care.diabetesjournals.org/lookup/suppl/doi:10.2337/dc13-2195/-/DC1. See accompanying articles, pp. 906, 909, 912, 934, 943, 950, and 957.

Language

en