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Table 1 Work Packages & Objectives

From: Exploring the impact of public health teams on alcohol premises licensing in England and Scotland (ExILEnS): procotol for a mixed methods natural experiment evaluation

1. INTERVENTION SCOPING & PROCESS EVALUATION: To describe and explore PUBLIC HEALTH TEAM (PHT) engagement in alcohol premises licensing, the local licensing regime and related processes in 20 high activity and 20 low activity PHTs over the period 2012–2018.
 a. Identify and recruit 40 local PHTs in England and Scotland that vary demographically and in the timing, breadth, components and intensity of their efforts to engage in alcohol premises licensing since 2012.
 b. Establish a clear picture of PHT, licensing and confounding activity in each area from 2012 to 2018.
 c. Establish measurable indicators of the intensity and costs of PHT engagement in licensing and local licensing activity in each area.
 d. Explore perceived mechanisms of change and real and perceived barriers to PHT engagement in licensing, from the perspectives of public health, licensing, police and other stakeholders.
2 ALCOHOL HARMS EVALUATION: To quantitatively evaluate whether PHT engagement in licensing has a measureable impact on health harms and crime rates using routine data from 2009 to 2018.
 a. Match the selected intervention local areas to 20 best possible control areas using genetic matching.
 b. Collect quantitative data on a set of key alcohol harm and crime outcome indicators on which subsequent evaluation will be based.
 c. Evaluate if, and to what extent, the intensity and components of the intervention are associated with subsequent measureable changes in the key outcome indicators.
3. WIDER IMPACTS, COSTS AND DISTRIBUTION OF EFFECTS: To examine implementation costs, estimate the short-term impact of PHT engagement in licensing on alcohol consumption and the longer-term impact (up to 20 years) of the intervention on health and healthcare costs and explore the likely distribution of effects across the population.
 a. Estimate and compare the overall costs to PHTs of implementation activity
 b. Develop locally-specific policy models for each active intervention area.
 c. Use these models to estimate the wider impacts of the intervention in terms of long-term health benefits, NHS cost savings and how these impacts may affect health inequalities
 d. Estimate the potential impact of high intensity PHT activity in two exemplar areas (one in England, one in Scotland) which are not currently active.
4. IMPACT OF FINDINGS:
 a. Revise and refine hypothesised theories of change to qualitatively examine how PHT activities and key aspects of the licensing system may lead to changes in licensing outcomes and related harms.
 b. Synthesise all findings, plan dissemination and identify recommendations for practice, policy and future research and disseminate.