Table 5.
Disclosure Rate by Drug Type, ADAM-Adult Arrestees 2000-2001
| Marijuana | Cocaine/ Crack |
Heroin | Methamphetamine | Methadone | PCP | |
|---|---|---|---|---|---|---|
| Among detected users, self-reported use in |
||||||
| Past two-three days | 62.8% | 48.5% | 52.8% | 57.9% | 69.2% | 22.4% |
| Past 30 days | 82.3% | 63.1% | 60.0% | 72.5% | -- | -- |
| Past 12 months | 87.4% | 67.5% | 62.7% | 77.0% | -- | -- |
| Lifetime (ever) | 95.4% | 79.6% | 70.4% | 86.8% | -- | -- |
| Overreporting rate based on report of use in |
||||||
| Past two to three days | 6.8% | 1.3% | 0.6% | 0.8% | 0.4% | 0.2% |
| Past 30 days | 18.9% | |||||
| Prevalence rate | ||||||
| Detected | 39.1% | 29.0% | 7.6% | 11.6% | 1.5% | 1.6% |
| Self-reporteda | 43.7% | 15.0% | 4.4% | 6.8% | 1.4% | 0.6% |
| 2×2 Tablea | ||||||
| Confirmed nonusers | 49.3% | 70.2% | 92.2% | 87.8% | 98.1% | 98.1% |
| Overreporters | 11.5% | 1.0% | 0.6% | 0.7% | 0.4% | 0.2% |
| Nondisclosers | 6.9% | 14.9% | 3.4% | 4.9% | 0.4% | 1.3% |
| Confirmed users | 32.3% | 14.0% | 3.8% | 6.7% | 1.0% | 0.4% |
| Kappaa | 0.621 | 0.550 | 0.637 | 0.678 | 0.690 | 0.321 |
a
Based on self-reported use in the last 48 to 72 hours for each drug except marijuana, which is based on self-reported use in the past 30 days.
-- Questions regarding past-month, past-year, and lifetime use of methadone and PCP not asked.