The work presented in this report builds upon previous work undertaken as part of a DH policy research programme grant on “An Evidence-Based Model for Estimating Requirements for Specialist Alcohol Treatment Capacity in England: The Specialist Treatment for Alcohol Model (STreAM)”, project reference PR-R4-0512-12002. The work here supersedes the estimates for prevalence of alcohol dependence presented in that report by updating the analyses using APMS 2014 instead of APMS 2007 as the key data source.