Table 1:
Demographic and drug use characteristics of participants in each group. 1Perceived Stress Scale, 2State Trait anxiety Inventory, 3Perceived Stress Reactivity Scale.
| 0 mg | 7.5 mg | 12.5 mg | |
|---|---|---|---|
| N (Male/Female) | 14 (9/5) | 15 (9/6) | 13 (11/2) |
| Race* (N/%) | |||
| Asian | 1/7 | 1/7 | 0/0 |
| Black or African American | 1/7 | 2/13 | 2/15 |
| White | 8/57 | 9/60 | 9/70 |
| Other | 4/29 | 2/20 | 2/15 |
| Age (yrs) | 23.8 ± 1.4 | 23.2 ± 0.9 | 23.9 ± 1.3 |
| Body mass index (kg/m2) | 21.7 ± 0.5 | 22.8 ± 0.5 | 23.3 ± 0.4 |
| Current Drug Use | |||
| Caffeine (drinks/wk) | 7.8 ± 1.4 | 6.1 ± 1.4 | 9.4 ± 1.6 |
| Alcohol (drinks/wk) | 4.3 ± 1.0 | 6.7 ± 1.5 | 8.0 ± 1.5 |
| Cigarettes (per wk) | 4.8 ± 2.9 | 0.9 ± 0.9 | 4.1 ± 2.6 |
| Cannabis (times/mo) | 1.5 ± 0.5 | 0.8 ± 0.3 | 0.7 ± 0.2 |
| Recreational Drug Use History (% ever used) | |||
| Stimulants | 36 | 40 | 39 |
| Opiates | 7 | 7 | 8 |
| Club Drugs | 29 | 27 | 23 |
| Hallucinogens | 29 | 40 | 31 |
| Tranquilizers | 0 | 0 | 8 |
| Inhalants | 7 | 13 | 8 |
| Current Stress (PSS1) | 10.7 ± 1.3 | 8.1 ± 1.0 | 8.2 ± 1.4 |
| Trait Anxiety (STAI2) | 30.6 ± 2.2 | 29.7 ± 1.8 | 35.8 ± 2.6 |
| Stress Reactivity (PSRS3) | 12.0 ± 1.7 | 11.4 ± 1.2 | 13.8 ± 1.5 |
*
Participants self-identified their Race by selecting one or more of the following categories; “American Indian or Alaska Native”, “Asian”, “Black or African American”, “Native Hawaiian or Other Pacific Islander”, “White”, “More than one Race”. There were small numbers of participants in categories other than “Black or African American”, “White” or “Asian”, thus these individuals were grouped as “Other”.