The Optimising Family Engagement in HENRY (OFTEN) Study

"HENRY HENRY is an 8-week childhood obesity prevention programme delivered in Children's Centres in the UK by trained practitioners, aiming to provide parents with skills and knowledge to support healthy lifestyles in preschool children and their families. The programme aims to build parents' skills, knowledge and confidence to change old habits and provide healthier nutrition.~OPTIMISATION A tailored 'Optimisation' intervention has being developed to support local authorities and Children's Centres to promote HENRY implementation, based on an ethnography of Children Centres, including interviews with staff and other stakeholders and input from parents. Development was underpinned by strong theories of behaviour change and will be guided by the intervention planning framework; the Behaviour Change wheel using a systematic approach. Strategies have been developed to improve parent motivation to enrol on to HENRY and promote parent self-efficacy to continue to attend."

Local Authorities / Children's Centres that are assigned to the control group will continue with standard HENRY practice. Current HENRY QA practice involves the review of process data by HENRY central office with provision of written and oral feedback. This will continue in both trial arms and will be monitored.