Table 1.
Demographic and questionnaire data.
| n | Age | Sex (female) | BDI‐II‐total | STAI‐S‐total | STAI‐T‐total | |
|---|---|---|---|---|---|---|
| Poly‐drug SD | 36 | 38.167 | 7.000 | 10.889 | 34.194 | 40.972 |
| 7.636 | 6.927 | 9.674 | 12.263 | |||
| AD | 21 | 45.381 | 4.000 | 9.905 | 33.333 | 40.905 |
| 8.789 | 9.534 | 11.284 | 12.136 | |||
| HV | 36 | 40.833 | 8.000 | 3.861 | 26.472 | 29.944 |
| 8.674 | 4.486 | 6.759 | 7.917 | |||
| P | 0.011 | <0.001 | 0.001 | <0.001 | ||
| Alcohol abstinence | Cocaine abstinence | Opiate abstinence | Alcohol exposure | Cocaine exposure | Opiate exposure | |
| Poly‐drug SD | 18.157 | 31.493 | 42.683 | 9.903 | 6.153 | 7.867 |
| 37.483 | 33.750 | 59.684 | 9.260 | 5.399 | 7.234 | |
| AD | 13.417 | 28.955 | 15.875 | 18.714 | 0.636 | 0 |
| 18.693 | 24.942 | 19.976 | 8.655 | 1.433 | 0 | |
| HV | 0.317 | 120.600 | NA | 1.176 | 0 | 0 |
| 0.924 | 140.335 | NA | 3.157 | 0 | 0 | |
| Age first used cocaine | Age first used opiates | Age used alcohol regularly | Age used cocaine regularly | Age used opiates regularly | ||
| Poly‐drug SD | 19.833 | 20.767 | 15.559 | 23.594 | 21.750 | |
| 4.326 | 6.038 | 3.910 | 6.293 | 3.904 | ||
| AD | 31.455 | 42.000 | 16.524 | 33.000 | ||
| 10.182 | 7.071 | 3.558 | 9.592 | |||
| HV | 25.000 | NA | 18.485 | Na | NA | |
| 2.739 | NA | 3.684 | NA | NA | ||
| Smokers (current/previous/non) | Cigarettes number per day | Pack years | ||||
| Poly‐drug SD | 08/04/24 | 15.964 | 19.541 | |||
| 8.558 | 14.261 | |||||
| AD | 14/04/03 | 17.179 | 26.535 | |||
| 7.324 | 18.404 | |||||
| HV | 19/04/13 | 9.637 | 14.667 | |||
| 6.776 | 12.623 | |||||
| p | 0.004 | 0.010 | 0.052 |
Mean and standard deviation is reported. Abstinence is reported in months.
SD, substance dependence; AD, alcohol dependence; HV, healthy volunteer; N, number; BDI, Beck Depression Inventory; STAI, state–trait anxiety index; NA, not applicable.