Table 1 Baseline characteristics of the whole sample

Age [(M (SD)]

35 (7.8)

AUDIT T0 [(M (SD)]

8.8 (9)

Alcohol consumption T0 (%)

   Low-risk drinkers

55.5

   Heavy drinkers

19.7

   Alcohol dependence

24.8

Men (%)

72.3

Treatment (%)

   Methadone

56.2

   Diacethyl-morphine (heroin)

12

   Patients without substitution

31.7

Psychiatric disorder (%)

   Mood disorder

35.6

   Personality disorder

34

   Anxiety disorder

14.7

   Psychotic disorder

9.4