| Involuntary n/ Voluntary n | Involuntary (%) | Voluntary (%) | P-value |
---|---|---|---|---|
F10-19 Substance use disorders | ||||
 Single substance | 65/137 | 9 (13.8) | 32 (23.4) | 0.116 |
 Two substances | 65/137 | 11 (16.9) | 30 (21.9) | 0.412 |
 Three or more substances | 65/137 | 45 (69.2) | 75 (54.7) | 0.050 |
ASI, Substance Abuse ab | ||||
 Alcohol | 60/132 | 29 (48.3) | 41 (31.1) | 0.021 |
 Heroin | 61/134 | 21 (34.4) | 18 (13.4) | 0.001 |
 Other opiates | 60/130 | 11 (18.3) | 25 (19.2) | 0.883 |
 Benzodiazepines, other sedatives | 60/134 | 39 (65.0) | 63 (47.0) | 0.020 |
 Amphetamines | 62/135 | 35 (56.5) | 67 (49.6) | 0.374 |
 Cannabis | 61/133 | 32 (52.5) | 71 (53.4) | 0.905 |
 Cocaine, inhalants, hallucinogens | 60/132 | 12 (20.0) | 18 (13.6) | 0.260 |