Drug | Male (n) | Mean age | Mean age at 1st use | Female (n) | Mean age | Mean age at 1st use | Total (m+f) | Mean age | Mean age at 1st use |
---|---|---|---|---|---|---|---|---|---|
Alcohol | 193 | 37.9 | 18 | 77 | 41 | 21 | 270 | 38.8 | 19 |
Amphetamines | 207 | 28.3 | 20 | 72 | 27.7 | 20 | 279 | 28.2 | 20 |
Anti-depressants | 3 | 20.7 | 18 | 2 | 36.1 | 0 | 5 | 26.9 | 18 |
Barbiturates | 1 | 38.9 | 0 | 1 | 42 | 41 | 2 | 40.9 | 41 |
Benzodiazepines | 33 | 34.5 | 22 | 24 | 36.4 | 26 | 57 | 35.3 | 24 |
Cannabis | 445 | 22.3 | 15 | 84 | 21.9 | 16 | 529 | 22.3 | 15 |
Cocaine | 71 | 28.1 | 24 | 11 | 25.2 | 21 | 82 | 27.7 | 23 |
Crack | 161 | 27.6 | 23 | 46 | 25.1 | 21 | 207 | 27 | 23 |
Ecstacy | 42 | 22.3 | 18 | 11 | 18.3 | 14 | 53 | 21.5 | 18 |
Hallucinogens | 2 | 19.1 | 0 | 0 | 0 | 2 | 19 | ||
Heroin | 2482 | 25.3 | 20 | 721 | 24.1 | 20 | 3203 | 25.3 | 20 |
Major Tranquilisers | 1 | 25.6 | 0 | 0 | 0 | 1 | 25.6 | ||
Methadone | 143 | 29.8 | 22 | 68 | 28.4 | 22 | 211 | 29.3 | 22 |
Other drugs | 17 | 26.8 | 20 | 4 | 28.9 | 18 | 21 | 27.2 | 20 |
Other opiates | 60 | 29.6 | 21 | 17 | 28.8 | 24 | 77 | 29.4 | 21 |
Solvents | 32 | 18.8 | 13 | 18 | 17.6 | 13 | 50 | 18.4 | 13 |
Total | 3893 | 26.3 | 20 | 1156 | 25.8 | 20 | 5049 | 26.2 | 20 |