Univariable ecological associations between the annual growth rate of Gross Domestic Product (GDP) in Greece and various dependent variables for the period 2001–2012.

1CI: Confidence Interval, HIV: Human Immunodeficiency Virus, HCV: Hepatitis C VirusIn all models, robust estimates of variance have been used.2For the negative binomial regression model, the coefficient has been exponentiated corresponding to the reporting rate ratio of HIV-1 infection in drug injectors for one unit increase in the annual growth rate of GDP [i.e. for 1% increase of GDP each year, the reporting rate of HIV-1 infection in drug injectors reduces by 1–0.78 = 0.22 or 22%).3The prevalence of HIV-1 infection has been logged (natural logarithm).4Estimated among drug injectors who accessed drug treatment -or low-threshold services in Athens. Data were not available for 2001 and 2007.5“New” drug injectors: IDUs with injecting history of less than 2 years.6Estimated among drug injectors who contacted treatment services or low-threshold facilities in Athens. Data for 2007 and 2012 were not available.