Table 1.
Thirty-day, 1-year, and lifetime prevalence of participants
| Substance | Total, N | Thirty-day, % | One-year, % | Lifetime, % |
|---|---|---|---|---|
| Alcohol | 714 | 88.2 | 95.2 | 99.6 |
| Nicotine | 710 | 74.4 | 84.4 | 95.2 |
| Cannabis | 711 | 60.9 | 82.0 | 97.2 |
| Amphetamine (speed, fet, powder) | 709 | 53.3 | 81.7 | 92.9 |
| MDMA (ecstasy) | 711 | 47.1 | 84.0 | 94.4 |
| Cocaine | 709 | 41.5 | 73.5 | 89.3 |
| “K” | 701 | 36.7 | 62.2 | 78.2 |
| GHB/GBL (liquid ecstasy, “G”) | 690 | 10.9 | 16.1 | 32.9 |
| LSD (acid) | 689 | 9.9 | 38.1 | 59.7 |
| Benzodiazepines (e.g., Tavor, Valium) | 694 | 8.2 | 19.0 | 37.0 |
| Neuro-enhancer (e.g., methylphenidate, modafinil) | 692 | 4.5 | 10.0 | 32.2 |
| Poppers (e.g., amyl nitrite) | 691 | 4.3 | 14.5 | 39.8 |
| Psilocybin (magic mushrooms) | 696 | 3.9 | 29.0 | 67.4 |
| Synthetic cathinones | 692 | 3.8 | 7.8 | 17.8 |
| Opioid-based painkillers (e.g., tramal, tilidin) | 693 | 2.6 | 10.5 | 28.7 |
| Methamphetamine (crystal meth, ice) | 694 | 1.9 | 3.9 | 15.4 |
| RCs | 692 | 1.7 | 4.9 | 17.5 |
| Heroin | 693 | 0.6 | 1.0 | 4.6 |
| Synthetic cannabinoids | 687 | 0.4 | 1.5 | 19.2 |
| Othersa | 233 | 6.4 | 21.5 | 34.8 |
MDMA, 3,4-methylenedioxy-methamphetamine; K, ketamine; GHB, gamma-hydroxybutyric acid; GBL, gamma-butyrolactone; LSD, lysergic acid diethylamide; RC, research chemical.
a
Ten most popular substances stated in this category are given as follows, in descending order: 2C-B (n = 40), (5-Meo-)DMT (n = 16), nitrous oxide (n = 7), kratom (n = 5), mescaline (n = 4), salvia (n = 4), ayahuasca (n = 3), 4-FA (n = 3), khat (n = 2), and methoxetamine (n = 2).