|
| SUD group (n: 50) | ADHD-SUD group (n: 40) | Significance |
| Age (M ± SD) | 25.56 ± 6.74 | 24.98 ± 8.31 | t = 0.790 p = 0.432 |
| The year of education; | 9.64 ± 3.41 | 9.70 ± 3.61 | t = −0.116 p = 0.908 |
| Job; Working | 33 (66%) | 23 (46%) | χ2 = 1.500 p = 0.221 |
| Not working | 17 (34%) | 23 (46%) |
|
| Suicidal thoughts: Yes/No | 23//27 | 22/28 | χ2 = 0.41 p = 0.841 |
| Suicide attempts: Yes/No | 22/28 | 19/31 | χ2 = 0.372 p = 0.542 |
| The age of onset of substance use | 20.86 ± 6.62 | 17.10 ± 3.37 | t = 3.577 p = 0.001 |