Table 4.
Conditional probabilities of substance use among White adolescents
| Class Prevalence |
Frequent Polysubstance Use (1.7%) | Moderate Polysubstance Use (1.6%) | Alcohol, Marijuana & Cigarette Use (9.4%) | Predominant Alcohol Use (13.9%) | Non-Use (73.4%) |
|---|---|---|---|---|---|
| Cigarettes | |||||
| - 0 days | .082 | .240 | .283 | .612 | .981 |
| - 1–2 days | .013 | .293 | .092 | .205 | .011 |
| - 3–9 days | .108 | .216 | .099 | .084 | .000 |
| - 10–30 days | .798 | .251 | .525 | .100 | .008 |
| Alcohol | |||||
| - 0 days | .001 | .098 | .116 | .131 | .816 |
| - 1–2 days | .022 | .214 | .222 | .480 | .145 |
| - 3–9 days | .137 | .507 | .422 | .337 | .036 |
| - 10–30 days | .839 | .181 | .240 | .053 | .004 |
| Marijuana | |||||
| - 0 days | .002 | .099 | .167 | .557 | .990 |
| - 1–2 days | .000 | .167 | .110 | .324 | .005 |
| - 3–9 days | .000 | .395 | .200 | .119 | .002 |
| - 10–30 days | .997 | .339 | .523 | .000 | .002 |
| Inhalants | |||||
| - 0 days | .096 | .022 | .977 | .955 | .998 |
| - 1–2 days | .014 | .394 | .021 | .036 | .002 |
| - 3–9 days | .024 | .451 | .003 | .008 | .000 |
| - 10–30 days | .866 | .134 | .000 | .001 | .001 |
| Other Use | |||||
| - 0 days | .039 | .257 | .856 | .962 | .998 |
| - 1–2 days | .010 | .204 | .078 | .029 | .000 |
| - 3–9 days | .040 | .400 | .047 | .002 | .001 |
| - 10–30 days | .912 | .139 | .020 | .006 | .001 |