| Heroin (n = 200) | Cannabis (n = 159) | Tobacco (n = 149) | Cocaine (n = 119) | Alcohol (n = 75) |
Starting age (in years) | |||||
[10 - 20[ | 42 (21.0%) | 51 (32.1%) | 45 (30.2%) | 25 (21.0%) | 29 (38.7%) |
[20 - 30[ | 102 (51.0%) | 75 (47.2%) | 70 (47.0%) | 62 (52.1%) | 35 (46.7%) |
[30 - 40[ | 40 (20.0%) | 26 (16.3%) | 25 (16.8%) | 23 (19.3%) | 7 (9.3%) |
[40 - 50[ | 16 (8.0%) | 7 (4.4%) | 9 (6.0%) | 9 (7.6%) | 4 (5.3%) |
Mode of consumption | |||||
Smoked | 103 (51.5%) | 159 (100%) | 145 (97.3%) | 106 (89.1%) | - |
Injected | 97 (48.5%) | - | - | 10 (8.4%) | - |
Chewed | - | - | 3 (2.0%) | - | - |
Inhaled (snorted) | - | - | 1 (0.7%) | 3 (2.5%) | - |
Frequency |
|
|
|
|
|
Every day | 199 (99.5%) | - | - | 119 (100%) | - |
Once a week | 1 (0.5%) | - | - | - | - |
Number of drinks, cigarettes or joints per day | |||||
[0 - 5[ | - | 100 (62.9%) | 15 (10.1%) | - | 60 (80.0%) |
[5 - 10[ | - | 33 (20.8%) | 30 (20.1%) | - | 11 (14.7%) |
[10 - 15[ | - | 17 (10.7%) | 20 (13.4%) | - | 3 (4.0%) |
[15 - 20[ | - | 9 (5.7%) | 17 (11.4%) | - | 1 (1.3%) |
[2 - 250[ | - | - | 41 (27.5%) | - | - |
[25 - 30[ | - | - | 20 (13.4%) | - | - |
[30- and more[ | - | - | 6 (4.1%) | - | - |
Number of drunkenness per Month | |||||
[0 - 10[ | - | - | - | - | 69 (92.0%) |
[10 - 20[ | - | - | - | - | 4 (5.3%) |
[20 - 30[ | - | - | - | - | 2 (2.7%) |