Impact of a community-based pilot intervention to tackle childhood obesity: a ‘whole-system approach’ case study
Abstract Background Go-Golborne was a 3-year pilot programme to test an innovative, community-based approach to preventing overweight in children in Golborne ward, London. This paper describes the findings of the evaluation of Go-Golborne. The evaluation uses a case study design, a theory of change approach and multiple methods to assess the effectiveness of the intervention according to a range of expected outcomes and with consideration to unanticipated outcomes. The RE-AIM framework is used to synthesise findings and examine public health impact. Methods Height/weight measurements of primary school children in the six participating primary schools were recorded each year for four years. For behavioural outcomes, children aged 6-11 completed four annual on-line surveys (with a total of 4331 responses). Parents were surveyed in year 1 and year 4 (177 responses). Three focus group discussions were held with children aged 10-11 (N=21); interviews were conducted with parents (N=11), and school representatives (N=4). For other intermediate outcomes, stakeholders were surveyed twice (37 responses), and interviews were conducted with key stakeholders (N=11). An extensive range of programme documents were reviewed and additional process data was collected from the programme team. Results Go-Golborne achieved excellent reach through the engagement of a diverse range of partners and schools. The proportion of children in the above healthy weight categories remained stable over time. A number of changes in home, school and neighbourhood environments to support healthy behaviour change were evidenced. There was some qualitative evidence of positive changes in children’s behaviours, though significant or sustained changes were not evidenced by the quantitative data. Conclusions Go-Golborne is an example of a ‘whole systems approach’ to obesity at local level which helped stakeholders and parents to develop a shared commitment to improving healthy weight in children, to identify barriers to a healthy lifestyle, and to start to make changes in their services/behaviours. The campaigns and changes made at micro-level appeared to be insufficient, in the face of counteracting forces and personal factors, to achieve significant behaviour change within three years. This highlights the need for local initiatives to be reinforced by supporting action at regional, national and global levels.