Table II.
Patterns of ketamine use (N = 213).
| Lifetime ketamine injectiona | |
| 1–5 | 47.3% |
| 6–20 | 30.7% |
| 21+ | 21.0% |
| Lifetime ketamine sniffinga | |
| 0–5 | 51.3% |
| 6–20 | 21.0% |
| 21+ | 26.4% |
| Preferred way to use ketamineb | |
| Intravenous (IV) | 41.0% |
| Intramuscular (IM) | 28.7% |
| Intranasal (sniffed) | 26.6% |
| Other | 7.8% |
| Combined ketamine w/other drugs (Ever) | 45.1% |
| Cocaine | 19.2% |
| Methamphetamine | 11.3% |
| Ecstasy | 11.3% |
| Heroin | 8.0% |
| Marijuana | 6.6% |
| LSD | 5.2% |
| Drug of choice (ketamine) | 3.8% |
a
Note: Eight respondents missing data;
b
Twenty-five respondents missing data.