Table 3. Mean scores of HCR-20 for non-violent and violent subjects (n=44).
| Item | Non violent (n=31) | Violent (n=13) | ||
|---|---|---|---|---|
| Mean | SD | Mean | SD | |
| Historical Scale | ||||
| H1 Previous violence | 1,54 | 0,85 | 2,00 | 0,00 |
| H2 Young age at first violent incident | 1,22 | 0,84 | 1,84 | 0,37 |
| H3 Relationship instability | 0,77 | 0,80 | 1,30 | 0,85 |
| H4 Employment problems | 2,00 | 0,00 | 2,00 | 0,00 |
| H5 Substance use problems | 1,70 | 0,69 | 2,00 | 0,00 |
| H6 Severe mental illness | 2,00 | 0,00 | 2,00 | 0,00 |
| H7 Psychopathy | 0,87 | 0,76 | 1,76 | 0,43 |
| H8 Early maladjustment | 1,35 | 0,70 | 1,92 | 0,27 |
| H9 Personality disorder | 1,12 | 0,88 | 1,92 | 0,27 |
| H10 Prior supervision failure | 1,22 | 0,76 | 2,00 | 0,00 |
| Total score scale H (historical items) | 13,87 | 3,91 | 18,76 | 1,42 |
| Clinical scale | ||||
| C1 Lack of insight | 1,48 | 0,76 | 1,76 | 0,43 |
| C2 Negative attitudes | 0,58 | 0,76 | 1,84 | 0,37 |
| C3 Active symptoms of severe mental illness | 1,93 | 0,24 | 2,00 | 0,00 |
| C4 Impulsivity | 0,84 | 1,92 | 0,27 | |
| C5 Unresponsive to treatment | 0,35 | 0,70 | 1,30 | 0,75 |
| Total score scale C (clinical items) | 5,41 | 1,96 | 8,84 | 1,14 |
| Risk management scale | ||||
| R1 Plans lack feasibility | 1,06 | 0,89 | 1,69 | 0,48 |
| R2 Exposure to destabilisers | 2,00 | 0,00 | 2,00 | 0,00 |
| R3 Lack of social support | 2,00 | 0,00 | 2,00 | 0,00 |
| R4 Non-compliance with remediation attempts | 1,00 | 0,89 | 1,69 | 0,48 |
| R5 Stress | 2,00 | 0,00 | 2,00 | 0,00 |
| Total score scale R (risk items) | 8,06 | 1,28 | 9,38 | 0,65 |
| Total score HCR-20 | 27,29 | 5,31 | 37,00 | 1,95 |
Note. SD: standard deviation; HCR-20: The Historical Clinical Risk Management-20.