| Substance | All grades, % | All grades, % | Grade 7, % | Grade 8, % | Grade 9, % | Grade 10, % | Grade 11, % | Grade 12, % | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| All | Female | Male | Female | Male | Female | Male | Female | Male | Female | Male | Female | Male | Female | Male | |
| Medicinal substances | |||||||||||||||
| Any | 5.3 | 5.8 | 4.9 | 2.6 | 2.0 | 3.9 | 3.1 | 5.8 | 3.7 | 5.4 | 4.9 | 7.6 | 6.7 | 9.7 | 9.1 |
| Dextromethorphan | 2.9 | 3.0 | 2.7 | 1.8 | 1.5 | 2.2 | 2.0 | 2.4 | 1.9 | 2.7 | 2.5 | 3.8 | 3.3 | 5.4 | 5.4 |
| Pain medications | 2.6 | 2.8 | 2.3 | 0.8 | 0.6 | 1.7 | 1.3 | 2.4 | 1.5 | 2.4 | 2.5 | 4.3 | 3.4 | 5.7 | 4.7 |
| Sleeping medications | 1.8 | 2.0 | 1.6 | 0.9 | 0.5 | 1.0 | 0.9 | 2.0 | 0.9 | 2.0 | 1.5 | 2.8 | 1.7 | 3.5 | 4.4 |
| Stimulants | 1.7 | 1.6 | 1.8 | 0.8 | 0.4 | 0.8 | 0.7 | 2.2 | 1.4 | 1.1 | 1.9 | 2.0 | 2.6 | 3.1 | 3.6 |
| Sedatives | 1.0 | 0.9 | 1.1 | 0.3 | 0.1 | 0.4 | 0.6 | 0.2 | 0.7 | 1.0 | 1.3 | 1.3 | 1.6 | 2.4 | 2.5 |
| Nonmedicinal substances | |||||||||||||||
| Any | 21.3 | 20.4 | 22.1 | 2.4 | 4.6 | 7.4 | 7.6 | 15.3 | 15.3 | 23.9 | 27.1 | 34.3 | 36.0 | 40.0 | 42.9 |
| Marijuana | 20.7 | 19.8 | 21.5 | 1.7 | 4.2 | 6.8 | 6.8 | 14.4 | 14.8 | 23.3 | 26.3 | 34.0 | 35.4 | 39.7 | 42.2 |
| Hallucinogens | 2.4 | 1.7 | 3.1 | 0.4 | 0.2 | 0.9 | 0.6 | 1.4 | 1.8 | 1.7 | 3.3 | 3.0 | 6.1 | 2.9 | 6.7 |
| MDMA | 2.3 | 2.1 | 2.6 | 0.2 | 0.1 | 0.9 | 0.7 | 1.2 | 1.5 | 2.3 | 2.2 | 3.9 | 4.0 | 4.4 | 7.1 |
| Salvia (Salvia divinorum) | 1.8 | 1.1 | 2.6 | 0.3 | 0.1 | 0.3 | 0.5 | 0.4 | 1.8 | 0.9 | 3.2 | 2.6 | 4.2 | 2.1 | 5.6 |
| Cocaine | 1.7 | 1.1 | 2.2 | 0.4 | 0.4 | 0.6 | 0.6 | 0.9 | 1.1 | 1.2 | 2.4 | 1.7 | 3.8 | 1.9 | 4.9 |
| Amphetamines | 1.6 | 1.2 | 1.9 | 0.4 | 0.4 | 1.3 | 0.8 | 1.2 | 1.1 | 1.4 | 2.2 | 1.8 | 3.8 | 1.0 | 3.3 |
| Spice (synthetic cannabis) | 1.3 | 1.0 | 1.5 | 0.6 | 0.4 | 0.8 | 1.2 | 0.8 | 1.2 | 1.2 | 1.7 | 1.5 | 2.2 | 1.1 | 2.3 |
| Solvents | 0.8 | 0.6 | 1.0 | 0.5 | 0.3 | 0.6 | 0.8 | 1.1. | 0.9 | 0.5 | 1.2 | 0.5 | 1.2 | 0.3 | 1.6 |
| Heroin | 0.6 | 0.3 | 0.8 | 0.2 | 0.3 | 0.4 | 0.4 | 0.2 | 0.5 | 0.3 | 0.8 | 0.4 | 1.2 | 0.3 | 1.7 |
| Bath salts* | 0.5 | 0.3 | 0.8 | 0.3 | 0.1 | 0.3 | 0.4 | 0.2 | 0.6 | 0.3 | 0.8 | 0.4 | 1.5 | 0.4 | 1.5 |
| BZP/TFMPP | 0.4 | 0.2 | 0.6 | 0.0 | 0.0 | 0.1 | 0.4 | 0.4 | 0.5 | 0.3 | 0.5 | 0.4 | 0.9 | 0.2 | 1.5 |
| Medicinal substance abuse only | 1.7 | 2.2 | 1.3 | 1.9 | 1.5 | 2.2 | 1.9 | 2.4 | 1.4 | 1.6 | 1.4 | 2.1 | 1.0 | 2.8 | 0.6 |
| Nonmedicinal substance abuse only | 17.7 | 16.8 | 18.6 | 1.7 | 4.0 | 5.8 | 6.4 | 11.9 | 13.0 | 20.2 | 23.6 | 28.8 | 30.3 | 33.2 | 34.4 |
| Concurrent abuse of both medicinal and nonmedicinal substances | 3.6 | 3.6 | 3.6 | 0.7 | 0.5 | 1.7 | 1.2 | 3.4 | 2.3 | 3.7 | 3.4 | 5.5 | 5.6 | 6.8 | 8.5 |
| Any substance abuse | 23.0 | 22.6 | 23.4 | 4.3 | 6.0 | 9.7 | 9.4 | 17.7 | 16.7 | 25.5 | 28.5 | 36.5 | 37.0 | 42.9 | 43.5 |
Note: BZP = benzylpiperazine, MDMA = 3,4-methylenedioxymethamphetamine, TFMPP = 3-trifluoromethylphenylpiperazine.
*A synthetic derivative of cathinone.