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Open Access Highly Accessed Study protocol

Walking away from type 2 diabetes: trial protocol of a cluster randomised controlled trial evaluating a structured education programme in those at high risk of developing type 2 diabetes

Thomas Yates145*, Melanie J Davies145, Joe Henson24, Jacqui Troughton24, Charlotte Edwardson24, Laura J Gray34 and Kamlesh Khunti34

Author Affiliations

1 Department of Cardiovascular Sciences, University of Leicester, Leicester, UK

2 Diabetes Research, University Hospitals of Leicester NHS Trust, Leicester, UK

3 Department of Health Sciences, University of Leicester, Leicester, UK

4 Leicester Diabetes Center, Leicester General Hospital, LE5 4PW, Leicester, UK

5 NIHR Leicester-Loughborough Diet, Lifestyle and Physical Activity Biomedical Research Unit, Leicester, UK

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BMC Family Practice 2012, 13:46  doi:10.1186/1471-2296-13-46

Published: 29 May 2012

Abstract

Background

The prevention of type 2 diabetes is a recognised health care priority globally. Within the United Kingdom, there is a lack of research investigating optimal methods of translating diabetes prevention programmes, based on the promotion of a healthy lifestyle, into routine primary care. This study aims to establish the behavioural and clinical effectiveness of a structured educational programme designed to target perceptions and knowledge of diabetes risk and promote a healthily lifestyle, particularly increased walking activity, in a multi-ethnic population at a high risk of developing type 2 diabetes.

Design

Cluster randomised controlled trial undertaken at the level of primary care practices. Follow-up will be conducted at 12, 24 and 36 months. The primary outcome is change in objectively measured ambulatory activity. Secondary outcomes include progression to type 2 diabetes, biochemical variables (including fasting glucose, 2-h glucose, HbA1c and lipids), anthropometric variables, quality of life and depression.

Methods

10 primary care practices will be recruited to the study (5 intervention, 5 control). Within each practice, individuals at high risk of impaired glucose regulation will be identified using an automated version of the Leicester Risk Assessment tool. Individuals scoring within the 90th percentile in each practice will be invited to take part in the study. Practices will be assigned to either the control group (advice leaflet) or the intervention group, in which participants will be invited to attend a 3 hour structured educational programme designed to promote physical activity and a healthy lifestyle. Participants in the intervention practices will also be invited to attend annual group-based maintenance workshops and will receive telephone contact halfway between annual sessions. The study will run from 2010–2014.

Discussion

This study will provide new evidence surrounding the long-term effectiveness of a diabetes prevention programme run within routine primary care in the United Kingdom.

Trial Registration

ClinicalTrials.Gov identifier: NCT00941954

Keywords:
Pedometer; Physical activity; Primary care; Prevention; Type 2 diabetes; Walking