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Appears in Collections:Psychology Journal Articles
Peer Review Status: Refereed
Title: Does the design of the NHS Diabetes Prevention Programme intervention have fidelity to the programme specification? A document analysis
Author(s): Hawkes, Rhiannon
Cameron, Elaine
Bower, Peter
French, David P
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Issue Date: 6-Dec-2019
Citation: Hawkes R, Cameron E, Bower P & French DP (2019) Does the design of the NHS Diabetes Prevention Programme intervention have fidelity to the programme specification? A document analysis. Diabetic Medicine.
Abstract: Aims To assess fidelity of the Healthier You: NHS Diabetes Prevention Programme (NHS‐DPP), a behavioural intervention for people in England at high risk of developing type 2 diabetes, to the specified programme features. Methods Document analysis of the NHS‐DPP programme specification, including National Institute for Health and Care Excellence (NICE) PH38 diabetes prevention guidance. This was compared with the intervention design (framework response documents and programme manuals) from all four independent providers delivering the NHS‐DPP. Documents were coded using the Template for Intervention Description and Replication framework (describing service parameters) and the Behaviour Change Technique Taxonomy v1. Results Providers demonstrated good fidelity to service parameters of the NHS‐DPP. The NHS‐DPP specification indicated 19 unique behaviour change techniques. Framework responses for the four providers contained between 24 and 32 distinct behaviour change techniques, and programme manuals contained between 23 and 45 distinct behaviour change techniques, indicating variation in behaviour change content between providers’ intervention documents. Thus, each provider planned to deliver 74% of the unique behaviour change techniques specified, and a large amount of behaviour change content not mandated. Conclusions There is good fidelity to the specified service parameters of the NHS‐DPP; however, the four providers planned to deliver approximately three‐quarters of behaviour change techniques specified by the NHS‐DPP. Given that behaviour change techniques are the ‘active ingredients’ of interventions, and some of these techniques in the programme manuals may be missed in practice, this highlights possible limitations with fidelity to the NHS‐DPP programme specification at the intervention design stage.
DOI Link: 10.1111/dme.14201
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Notes: Output Status: Forthcoming/Available Online

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