Objectives To assess the behavioural and weight status outcomes in English children in a feasibility study of a novel primary school-based obesity prevention programme.
Design Exploratory cluster randomised controlled trial of the Healthy Lifestyles Programme.
Setting Four city primary schools (two control and two intervention) in the South West of England.
Participants 202 children aged 9–10 years, of whom 193 and 188 were followed up at 18 and 24 months, respectively. No child was excluded from the study; however, to be eligible, schools were required to have at least one single Year 5 class.
Intervention Four-phase multicomponent programme using a range of school-based activities including lessons, assemblies, parents' evenings, interactive drama workshops and goal setting to engage and support schools, children and their families in healthy lifestyle behaviours. It runs over the spring and summer term of Year 5 and the autumn term of Year 6.
Primary and secondary outcomes Weight status outcomes were body mass index, waist circumference and body fat standard deviation scores (SDS) at 18 and 24 months, and behavioural outcomes were physical activity, television (TV) viewing/screen time and food intake at 18 months.
Results At 18 months of follow-up, intervention children consumed less energy-dense snacks and more healthy snacks; had less ‘negative food markers’, more ‘positive food markers’, lower mean TV/screen time and spent more time doing moderate-vigorous physical activity each day than those in the control schools. Intervention children had lower anthropometric measures at 18 and 24 months than control children, with larger differences at 24 months than at 18 months for nearly all measures.
Conclusions Results from this exploratory trial show consistent positive changes in favour of the intervention across all targeted behaviours, which, in turn, appear to affect weight status and body shape. A definitive trial is now justified.
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To cite: Lloyd JJ, Wyatt KM, Creanor S. Behavioural and weight status outcomes from an exploratory trial of the Healthy Lifestyles Programme (HeLP): a novel school-based obesity prevention programme. BMJ Open 2012;2:e000390. doi:10.1136/bmjopen-2011-000390
Contributors JJL drafted the manuscript with KMW and SC providing critical revision. SC carried out the statistical analysis and drafted this section of the manuscript. JJL developed and supported the design and production of the intervention materials, coordinated the implementation of the intervention and the collection of measurements at baseline, 18 and 24 months. JLL, KMW and SL designed the study and obtained funding. JLL will act as guarantor of the paper. All authors approved the final version of the manuscript to be published.
Funding The Exploratory Trial was funded by the National Institute for Health Research (NIHR) Research for Patient Benefit Programme. JLL and KMW were partially supported by PenCLAHRC, the NIHR CLAHRC for the Southwest Peninsula. This paper presents independent research commissioned by the NIHR. The views expressed are those of the author(s) and not necessarily those of the NHS, the NIHR or the Department of Health.
Competing interests None.
Ethics approval Ethical approval was granted from the Peninsula College of Medicine and Dentistry Ethics Committee in 2008.
Provenance and peer review Not commissioned; externally peer reviewed.
Data sharing statement No data are available.
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