%0 Journal Article
%T The NHS Low-Calorie Diet Digital Programme: Fidelity of behaviour change technique delivery.
%A Radley D
%A Evans TS
%A Marwood J
%A Keyworth C
%A Homer C
%A Ells LJ
%J Diabet Med
%V 0
%N 0
%D 2024 May 24
%M 38785432
%F 4.213
%R 10.1111/dme.15350
%X <B>OBJECTIVE: </B>NHS England commissioned independent service providers to deliver the NHS Low-Calorie Diet Programme pilot. Previous research has illustrated a drift in the fidelity of behaviour change techniques (BCTs) during the delivery of the programme provided through face-to-face group or one-to-one behavioural support. The aim of this study was to assess the delivery fidelity of the BCT content in the digital delivery of the programme.<BR><B>METHODS: </B>Online, app chat and phone call support content was coded using The Behaviour Change Technique Taxonomy. BCTs delivered by each service provider (N = 2) were calculated and compared to the BCTs specified in the NHS service specification and those specified in the providers' programme plans.<BR><B>RESULTS: </B>Between 78% and 83% of the BCTs identified in the NHS service specification were delivered by the service providers. The fidelity of BCT delivery to those specified in providers' programme plans was 60%-65% for provider A, and 82% for provider B.<BR><B>CONCLUSIONS: </B>The BCT content of the digital model used in the NHS-LCD programme adhered well to the NHS service specification and providers' plans. It surpassed what has been previously observed in face-to-face services provided through group or one-on-one behavioural support models.