| No SUD diagnosis (n = 464) | SUD diagnosis (n = 76) | t or χ2 (df) | P |
---|---|---|---|---|
Covariates | Â | Â | Â | Â |
Age: Mean (SD) | 27.9 (3.6) | 29.2 (3.7) | -2.88 (538) | <.01 |
Gender, % | Â | Â | Â | Â |
   Female | 62.5 | 30.3 |  |  |
   Male | 37.5 | 69.7 | 27.85 (1) | <.001 |
Behavioral & affective factors | Â | Â | Â | Â |
Attention or behavior problems at school, % | Â | Â | Â | Â |
   No | 87.1 | 43.4 |  |  |
   Yes | 7.1 | 32.9 |  |  |
   Missing | 5.8 | 23.7 | 80.82 (2) | <.001 |
Aggression, % | Â | Â | Â | Â |
   Low | 21.6 | 13.2 |  |  |
   Moderate | 59.7 | 36.8 |  |  |
   High | 18.8 | 50.0 | 35.85 (2) | <.001 |
Anxiousness, % | Â | Â | Â | Â |
   Low | 77.2 | 59.2 |  |  |
   Moderate | 19.6 | 26.3 |  |  |
   High | 3.2 | 14.5 | 21.38 (2) | <.001 |
Parental factors | Â | Â | Â | Â |
Parental alcohol problems, % | Â | Â | Â | Â |
   No | 66.4 | 31.6 |  |  |
   Yes | 21.8 | 26.3 |  |  |
   Missing | 11.9 | 42.1 | 50.56 (2) | <.001 |
Parental basic education, % | Â | Â | Â | Â |
   Some high school | 30.4 | 13.2 |  |  |
   Less than high school | 61.4 | 60.5 |  |  |
   Missing | 8.2 | 26.3 | 23.92 (2) | <.001 |
Age at substance use initiation | Â | Â | Â | Â |
Smoking, % | Â | Â | Â | Â |
   Non-smoker | 47.8 | 13.2 |  |  |
   >17 years | 14.7 | 18.4 |  |  |
   15-17 years | 24.8 | 32.9 |  |  |
   <15 years | 12.7 | 35.5 | 41.89 (3) | <.001 |
Drinking to intoxication, % | Â | Â | Â | Â |
   >17 years or never | 32.5 | 15.8 |  |  |
   15-17 years | 48.5 | 44.7 |  |  |
   <15 years | 19.0 | 39.5 | 18.83 (2) | <.001 |
Learning & education | Â | Â | Â | Â |
Learning difficulties at school, % | Â | Â | Â | Â |
   No | 86.4 | 56.6 |  |  |
   Yes | 7.8 | 19.7 |  |  |
   Missing | 5.8 | 23.7 | 42.00 (2) | <.001 |
Basic education, % | Â | Â | Â | Â |
   High school | 61.6 | 23.7 |  |  |
   Less than high school | 38.4 | 76.3 | 38.23 (1) | <.001 |