RT Journal Article SR Electronic T1 Implementation of a national smoke-free prison policy: an economic evaluation within the Tobacco in Prisons (TIPs) study JF Tobacco Control JO Tob Control FD BMJ Publishing Group Ltd SP tobaccocontrol-2021-056991 DO 10.1136/tobaccocontrol-2021-056991 A1 Nicola McMeekin A1 Olivia Wu A1 Kathleen Anne Boyd A1 Ashley Brown A1 Emily J Tweed A1 Catherine Best A1 Peter Craig A1 Alastair H Leyland A1 Evangelia Demou A1 Tom Byrne A1 Jill Pell A1 Sean Semple A1 Helen Sweeting A1 Lesley Graham A1 Kate Hunt YR 2022 UL http://tobaccocontrol.bmj.com/content/early/2022/03/06/tobaccocontrol-2021-056991.abstract AB Objective To determine the cost-effectiveness of a smoke-free prison policy in Scotland, through assessments of the trade-offs between costs (healthcare and non-healthcare-related expenditure) and outcomes (health and non-health-related non-monetary consequences) of implementing the policy.Design A health economic evaluation consisting of three analyses (cost-consequence, cost-effectiveness and cost-utility), from the perspectives of the healthcare payer, prison service, people in custody and operational staff, assessed the trade-offs between costs and outcomes. Costs associated with the implementation of the policy, healthcare resource use and personal spend on nicotine products were considered, alongside health and non-health outcomes. The cost-effectiveness of the policy was evaluated over 12-month and lifetime horizons (short term and long term).Setting Scotland’s national prison estate.Participants People in custody and operational prison staff.Intervention Implementation of a comprehensive (indoor and outdoor) smoke-free policy.Main outcome measures Concentration of secondhand smoke, health-related quality of life (health utilities and quality-adjusted life-years (QALY)) and various non-health outcomes (eg, incidents of assaults and fires).Results The short-term analyses suggest cost savings for people in custody and staff, improvements in concentration of secondhand smoke, with no consistent direction of change across other outcomes. The long-term analysis demonstrated that implementing smoke-free policy was cost-effective over a lifetime for people in custody and staff, with approximate cost savings of £28 000 and £450, respectively, and improvement in health-related quality of life of 0.971 QALYs and 0.262, respectively.Conclusion Implementing a smoke-free prison policy is cost-effective over the short term and long term for people in custody and staff.No data are available.