It should be noted that while evidence for Europe is sparse, the large part of the evidence on treatment seeking is based on studies from North American countries (particularly based on the two large epidemiological studies National Epidemiologic Survey on Alcohol and Related Conditions (NESARC) [3], and the National Household Survey on Drug Use and Health (NSDUH) [26] from the US). The present study is thereby a necessary addition of evidence for European countries.
