Table 1.
Subject (N=16) characteristics
| Variable | |
|---|---|
| Age (years) (mean ± S.D.) | 23.7 ± 3.9 |
| Age (years) at first cannabis use (mean ± S.D.) | 15.1 ± 2.8 |
| Sex | 11 females/5 males |
| Number of uses of cannabis per week* (median, 25–75th IQR) | 15.5, 3.3–21 |
| Cannabis abstinence (hours) (mean ± S.D.) | 13.5 ± 2.1 |
| Other drug use | Number reporting use |
| Alcohol | 16 |
| Psilocybin | 12 |
| Cocaine | 10 |
| LSD | 10 |
| Non-heroin opiates | 7 |
| Sedative hypnotics | 6 |
| Methamphetamine | 5 |
| Heroin | 3 |
| Substance-related diagnoses | Number diagnosed |
| Cannabis dependence (current) | 16 |
| Alcohol abuse (lifetime) | 6 |
| Alcohol dependence (lifetime) | 1 |
| Benzodiazepine dependence (lifetime) | 1 |
| Hallucinogen dependence (lifetime) | 1 |
| Cocaine dependence (lifetime) | 1 |
| Substance-induced mood episode (lifetime) | 1 |
| Major depression (lifetime) | 1 |
*
N=15