All participants completed the 10-item Alcohol Use Disorders Identification Test (AUDIT) questionnaire regarding quantity (number of standard drinks = 12 g alcohol), frequency of drinking as well as alcohol-related problems. The results for each question (score range 0–4) were summed to obtain the AUDIT score (i.e., total score range 0–40) (Cronbach’s alpha = 0.752). Scoring above eight points in males has been suggested as index of problematic drinking [32].