Table 1. Definition of European regions for his study, EuroSIDA study, 2004–2015 (n = 35 countries).

Western Europe	Southern Europe	Northern Europe	East Central Europe	Eastern Europe
Austria	Greece	Denmark	Bosnia-Herzegovina^a	Belarus
Belgium	Israel	Finland	Croatia^a	Estonia
France	Italy	Iceland^a	Czech Republic	Georgia^a
Germany	Portugal	Ireland	Hungary	Latvia
Luxembourg	Spain	The Netherlands	Poland	Lithuania
Switzerland		Norway	Romania	Russia
		Sweden	Serbia	Ukraine
		United Kingdom	Slovakia^b
		United Kingdom	Slovenia^a

^a Countries included only in the 2014–15 cohort.

^b Countries included only in the 2004–05 cohort.