Fig 1From: Prevalence of injecting drug use in Estonia 2010–2015: a capture-recapture studyYearly sample proportions of people in four capture data sets by age, sex, and county. DR, the Estonian Causes of Death Registry; PB, the Estonian Police and Border Guard Board; HIF-T, T40.1–T40.4 persons having insurance claims in the Estonian Health Insurance Fund; HIF-F, F11.0–F11.9 persons having insurance claims in the Estonian Health Insurance FundBack to article page