Table 2.
Substance Use Histories for Offspring with and without Externalizing Conditions
| Externalizing | No Externalizing | t or χ2 | p-value | |
|---|---|---|---|---|
| Sample Size | 17 | 148 | ||
| Alcohol | ||||
| Ever Drank (%) | 58.8% | 53.4% | 0.18 | .67 |
| Max Drinks Lifetime | 11.5 (3.46) | 6.8 (4.37) | −2.91 | .006 |
| Usual Frequency (6 mo.) | 1.8 (1.97) | 1.3 (1.45) | −1.05 | .30 |
| Usual Quantity (6 mo.) | 3.3 (3.41) | 1.4 (1.80) | −2.53 | .02 |
| Ever Alcohol Problems (%) | 87.5% | 44.3% | 5.37 | .03 |
| Diagnosis Abuse/Dependence (%) | 23.5% | 6.8% | 5.53 | .02 |
| Abuse | 5.9% | 0.7% | 3.45 | .07 |
| Dependence | 17.6% | 6.1% | 3.03 | .09 |
| Drugs | ||||
| Nicotine | ||||
| Ever use | 17.6% | 21.6% | 0.1 | .70 |
| Dependence | 5.9% | 0.0% | 8.76 | .004 |
| Marijuana | ||||
| Ever use | 47.1% | 30.4% | 1.9 | .17 |
| Abuse/Dependence | 29.4% | 6.1% | 10.69 | .002 |
| Cocaine | ||||
| Ever use | 29.4% | 8.1% | 7.5 | .006 |
| Abuse/Dependence | 5.9% | 0.0% | 8.76 | .004 |
| Amphetamines | ||||
| Ever use | 11.8% | 7.4% | 0.4 | .53 |
| Abuse/Dependence | 5.9% | 2.0% | 0.96 | .33 |
| Hallucinogens | ||||
| Ever use | 41.2% | 10.1% | 12.7 | <.001 |
| Abuse/Dependence | 5.9% | 1.4% | 1.75 | .19 |
| Sedatives/Hypnotics | ||||
| Ever use | 17.6% | 3.4% | 6.7 | .009 |
| Abuse/Dependence | 0.0% | 0.0% | na | na |
| Opiates | ||||
| Ever use | 5.9% | 5.4% | .01 | .94 |
| Abuse/Dependence | 5.9% | 1.4% | 1.75 | .19 |