Problematic opioid use in Ireland, 2015–2019

In this report, we present the results of a study that aimed to estimate the prevalence of problematic opioid use in Ireland from 2015 to 2019 using a four-source capture-recapture method. Three of the four data sources used for the analysis were derived from opioid substitution treatment records from the Central Treatment List (CTL) (clinics, general practitioners (GPs) and prisons) and the fourth data source was derived from the Probation Service.