Table 2.
Breakdown of externalizing disorders in the Externalizing Group of Discovery and Validation sample BPI subjects.
| Discovery and Validation sample subjects
| |||||||
|---|---|---|---|---|---|---|---|
| Externalizing disorder | Discovery sample (N=796) | Validation sample (N=801) | χ2 | df | P (two-sided) | ||
|
| |||||||
| N | % | N | % | ||||
| Alcohol abuse/dependence | 591 | 74.2 | 607 | 75.8 | 0.501 | 1 | 0.479 |
| Drug abuse/dependence | 528 | 66.3 | 475 | 59.3 | 8.448 | 1 | 0.004 |
| Pathological gambling | 43 | 5.4 | 44 | 5.5 | 0.006 | 1 | 0.936 |
| Anti-social personality disorder | 110 | 13.8 | 58 | 7.2 | 18.353 | 1 | <0.001 |
| Attention-deficit hyperactivity disorder | 153 | 19.2 | 263 | 32.8 | 38.407 | 1 | <0.001 |
| Conduct disorder | 29 | 3.6 | 28 | 3.5 | 0.025 | 1 | 0.874 |