Can a community-based 'smoke-free homes' intervention persuade families to apply smoking restrictions at homes?

Children are commonly exposed to second-hand smoke (SHS). The aim of this study is to evaluate the feasibility, acceptability and outcome of Smoke-Free Homes (SFH), a community-based intervention; and assess potential evaluation methods. SFH, designed to encourage families to implement smoking restrictions at home, was delivered over a period of 6 months through schools, healthcare settings and community events in Beeston, South Leeds, UK. It was evaluated using baseline and post-implementation surveys, focus group discussions and promise forms follow-up. We surveyed 318 households before, and 217 households after, the intervention. The proportion of all surveyed households reporting being completely smoke free significantly increased from 35% [95% confidence interval (CI) 30, 40] at baseline to 68% (95% CI: 61, 74) 6 months post-implementation (P < 0.0001). Ninety per cent of people, followed-up by telephone 3 months after signing SFH promise form, said they were still keeping their promise. Focus group discussions with children and parents conveyed acceptability of the intervention, in particular, the schools element, where children are encouraged to discuss the concept of SFH with the adults in their households. Our study shows that SFH can be implemented effectively and has the potential to improve children's health through preventing exposure to SHS in the home.