Definitive findings from the Babybreathe Trial – Preventing return to smoking postpartum

Most people who manage to quit smoking in pregnancy relapse postpartum. BabyBreathe^TM is a complex intervention offering targeted one-to-one behavioural support in the community, delivered either face-to-face or remotely, alongside digital, and pharmacological support. In this presentation we report definitive outcomes from a randomised controlled trial (RCT) to compare the BabyBreathe^TM intervention with usual care. 887 participants were recruited to target and randomised. The primary outcome is 12-month sustained smoking abstinence, verified by exhaled carbon monoxide levels (CO). This presentation will focus on reporting the primary effectiveness outcome of the intervention, and initial qualitative process evaluation findings, before considering implications for practice.