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Background In 2008, the Healthy Community Challenge Fund commissioned nine 'healthy towns' in England to implement and evaluate community-based environmental interventions to prevent obesity. This paper examines the role of evidence in informing intervention development, innovation and the potential for programmes to contribute to the evidence base on the effectiveness of interventions that tackle population obesity. Method Twenty qualitative interviews with local programme stakeholders and national policy actors were conducted. Interview transcripts were coded and thematically analysed. Initial analyses were guided by research questions regarding the nature and role of evidence in the development and implementation of the healthy towns programme and the capacity for evidence generation to inform future intervention design, policy and practice. Findings Stakeholders relied on local anecdotal and observational evidence to guide programme development. While the programme was considered an opportunity to trial new and innovative approaches, the requirement to predict likely health impacts and adopt evidence-based practice was viewed contradictory to this aim. Stakeholders believed there were missed opportunities to add to the existing empirical evidence base due to a lack of clarity and planning, particularly around timing, in local and national evaluations. Conclusions A strong emphasis on relying on existing evidence-based practice and producing positive impacts and outcomes may have impeded the opportunity to implement truly innovative programmes because of fear of failure. Building more time for development, implementation and evaluation into future initiatives would maximise the use and generation of robust and relevant evidence for public health policy and practice. [ABSTRACT FROM AUTHOR]

Objective To explore social and behavioural impacts of English smoke-free legislation (SFL) in different ethnic groups. Design A longitudinal, qualitative panel study of smokers using in-depth interviews conducted before and after introduction of SFL. Participants A purposive sample of 32 smokers selected from three ethnic groups in deprived London neighbourhoods with approximately equal numbers of younger and older, male and female respondents. Results SFL has had positive impacts with half smoking less and three quitting. Although there were no apparent differences in smoking and quitting behaviours between groups, there were notable differences in the social impacts of SFL. The greatest negative impacts were in smokers over 60 years, potentially increasing their social isolation, and on young Somali women whose smoking was driven more underground. In contrast, most other young adult smokers felt relatively unaffected by SFL, describing unexpected social benefits. Although there was high compliance, reports of illegal smoking were more frequent among young, ethnic minority smokers, with descriptions of venues involved suggesting they are ethnically distinct and well hidden. Half of respondents reported stopping smoking in their own homes after SFL, but almost all were Somali or Turkish. White respondents tended to report increases in home smoking. Discussion Although our study suggests that SFL can lead to reductions in tobacco consumption, it also shows that impacts vary by ethnicity, age and sex. This study highlights the importance of understanding the meaning of smoking in different social contexts so future tobacco control interventions can be developed to reduce health and social inequalities. [ABSTRACT FROM AUTHOR]