Table 3.
Conditional probabilities of substance use among Black adolescents
| Class Prevalence |
Frequent Polysubstance Use (2.0%) | Alcohol, Marijuana & Cigarette Use (3.8%) | Alcohol and Marijuana Use (6.3%) | Non-Use (87.8%) |
|---|---|---|---|---|
| Cigarettes | ||||
| - 0 days | .223 | .281 | .858 | .987 |
| - 1–2 days | .141 | .320 | .047 | .009 |
| - 3–9 days | .083 | .260 | .047 | .004 |
| - 10–30 days | .553 | .139 | .049 | .001 |
| Alcohol | ||||
| - 0 days | .009 | .313 | .018 | .881 |
| - 1–2 days | .046 | .265 | .460 | .106 |
| - 3–9 days | .092 | .231 | .422 | .010 |
| - 10–30 days | .853 | .191 | .100 | .003 |
| Marijuana | ||||
| - 0 days | .010 | .234 | .049 | .924 |
| - 1–2 days | .045 | .157 | .387 | .040 |
| - 3–9 days | .000 | .266 | .207 | .020 |
| - 10–30 days | .945 | .343 | .358 | .016 |
| Inhalants | ||||
| - 0 days | .056 | .676 | .989 | .997 |
| - 1–2 days | .000 | .150 | .000 | .003 |
| - 3–9 days | .069 | .150 | .000 | .000 |
| - 10–30 days | .875 | .024 | .011 | .000 |
| Other Use | ||||
| - 0 days | .056 | .656 | .972 | .999 |
| - 1–2 days | .000 | .136 | .028 | .001 |
| - 3–9 days | .000 | .163 | .000 | .000 |
| - 10–30 days | .942 | .045 | .000 | .000 |