Table 1.
Demographic and marijuana use data.
| MJ (n = 10) | NU (n = 18) | |
|---|---|---|
| Age (years) | 20.3 ± 3.6 | 22.8 ± 5.0 |
| (Age range: 18–30) | (Age range: 18–33) | |
| Education (years) | 13.4 ± 1.5 | 15.5 ± 2.4 |
| Ethnicity (Caucasian/non-Caucasian)a | 9/0 | 11/7 |
| SESb | 43.4 ± 10.6 | 49.1 ± 12.2 |
| Age of MJ onset | 15.6 ± 1.2 | — |
| Smokes per week | 10.7 ± 5.5 | — |
| Grams per weekc | 4.8 ± 4.9 | — |
| Duration of use (yrs) | 4.0 ± 2.4 | — |
| ASI (MJ use out of 30 days) | 25.5 ± 4.0 | — |
| MWC | 2.0 ± 2.1 | — |
| THC (ng/mL) | 193.5 ± 219.2 | — |
Data represent mean ± standard deviation. MJ: marijuana; NU: nonusers; SES: Socioeconomic status; ASI: Addiction Severity Index; MWC: Marijuana
Withdrawal Check List. aOne missing data point for MJ user. Non-Caucasian
classification consisted of Asian, African American, and others.
bOne missing data point for NU. cTwo missing data points for grams per week.