Table 3.
Prevalence of cannabis use disorders and cannabis-related problems, by frequency of drinking and past-year cigarette smoking, among 474 “at-risk” cannabis users.
| Prevalence | ||||||
|---|---|---|---|---|---|---|
| Among Infrequent Alcohol Users a (n=235) | Among Frequent Alcohol Users a (n=239) | Among Cigarette Non-Smokers b (n=270) | Among Cigarette Smokers b (n=204) | |||
| % | % | χ2 (df) | % | % | χ2 (df) | |
| Cannabis Diagnostic Groups | ||||||
| Cannabis Dependence | 13.6 | 18.0 | 3.8 (3) | 10.7 | 22.6 | 19.1 (3) c |
| Cannabis Abuse | 20.4 | 24.7 | 20.7 | 25.0 | ||
| Cannabis Diagnostic Orphans | 21.3 | 18.0 | 19.3 | 20.1 | ||
| Non-Problematic Cannabis Use | 44.7 | 39.3 | 49.3 | 32.4 | ||
| Other Cannabis-Related Problems | ||||||
| Concentration problems after being high | 37.9 | 42.3 | .9 (1) | 34.8 | 47.1 | 7.3 (1) c |
| Drove while high | 19.2 | 18.0 | .1 (1) | 14.4 | 24.0 | 7.0 (1) c |
| Overslept and missed class | 15.7 | 12.1 | 1.3 (1) | 13.3 | 14.7 | .2 (1) |
| Problems with friends | 8.5 | 8.4 | <.1 (1) | 7.8 | 9.3 | .4 (1) |
| Problems with family | 8.1 | 8.0 | <.1 (1) | 6.7 | 9.8 | 1.6 (1) |
| Housing violation for drug use | 3.0 | 2.9 | <.1 (1) | 2.6 | 3.4 | .3 (1) |
a
“Frequent” alcohol use was defined as drinking on 9 or more days in the past month; “infrequent” users drank 0 to 8 days in the past month.
b
Cigarette smokers were defined as smoking at least once during the past month.
c
Denotes statistically significant differences (p<.05).