Table 3.
Pattern of substance use and disorders among past-year drug users aged 12–17 years by MDMA use status (N = 11,515)
| Prevalence % (SE) | A: MDMA users (n = 646) | B: Users of other hallucinogens (n = 939) | C: Users of non-hallucinogen drugs1 (n = 9,930) | χ2 test2 |
|---|---|---|---|---|
| Any use in the past year | ||||
| Hallucinogens/MDMA | 100 | 100 | 0 | |
| Alcohol | 94.8 (1.18) | 89.5 (1.28) | 74.3 (0.67) | A > B > C |
| Tobacco | 92.9 (1.33) | 82.6 (1.78) | 59.2 (0.62) | A > B > C |
| Marijuana | 88.5 (1.46) | 82.6 (1.86) | 65.1 (0.67) | AB > C |
| Opioids/analgesics 3 | 65.2 (2.46) | 49.3 (2.11) | 32.4 (0.67) | A > B > C |
| Cocaine | 43.2 (2.45) | 22.2 (1.88) | 4.7 (0.30) | A > B > C |
| Tranquilizers 3 | 36.3 (2.46) | 23.8 (1.93) | 7.0 (0.32) | A > B > C |
| Stimulants 3 | 29.1(2.44) | 22.3 (1.82) | 7.4 (0.30) | AB > C |
| Inhalants | 25.1 (2.30) | 27.7 (1.93) | 21.8 (0.57) | B > C |
| Heroin | 6.3 (1.23) | 2.5 (0.69) | 0.3 (0.05) | AB > C |
| Sedatives 3 | 4.8 (1.08) | 3.7 (0.86) | 2.0 (0.19) | A > C |
|
| ||||
| Abuse or dependence4 | ||||
| Hallucinogens/MDMA | 22.8 (2.35) | 12.8 (1.57) | 0 | A > B |
| Marijuana | 47.0 (2.68) | 36.9 (2.50) | 14.3 (0.50) | AB > C |
| Alcohol | 43.1 (2.79) | 37.0 (2.35) | 18.7 (0.53) | AB > C |
| Nicotine dependence4 | 40.9 (2.55) | 24.6 (1.87) | 12.4 (0.42) | A > B > C |
| Opioids/analgesics | 16.0 (1.92) | 12.2 (1.84) | 4.7 (0.31) | AB > C |
| Cocaine | 12.5 (1.64) | 4.3 (0.93) | 0.8 (0.01) | A > B > C |
| Tranquilizers | 6.3 (1.17) | 4.1 (0.95) | 0.8 (0.11) | AB > C |
| Stimulants | 5.8 (1.06) | 4.9 (1.13) | 1.0 (0.14) | AB > C |
| Inhalants | 4.1 (1.03) | 6.0 (0.96) | 1.9 (0.21) | AB > C |
| Heroin | 1.8 (0.66) | 1.02 (0.50) | 0.08 (0.03) | AB > C |
| Sedatives | 1.4 (0.58) | 1.5 (0.68) | 0.4 (0.09) | AB > C |
1
Users of non-hallucinogen drugs = past-year drug users (users of marijuana, cocaine, inhalants, heroin, or nonmedical users of opioids, stimulants, sedatives, or tranquilizers) who did not use any hallucinogen in the past year.
2
P < 0.05.
3
Nonmedical use of prescription drugs.
4
Except for past-month nicotine dependence; all the other substances refer to past-year abuse or dependence. The prevalence of nicotine dependence was expected to be higher than the current rate for past-month if it was based on a 12-month period.