Table 2.
Descriptive and demographic characteristics of samples for imminent and longer-term instruments included in the full meta-analysis (k = 35).
| Category and group | Imminent (k = 6) | Longer-Term (k = 29) |
|---|---|---|
| Tool Information | ||
| Type of tool | ||
| Actuarial | 6 (100) | 13 (45) |
| Structured professional judgement | 0 (0) | 16 (55) |
| Tool used | ||
| BVC | 3 (50) | - |
| COVR | - | 3 (10) |
| DASA | 3 (50) | - |
| HCR-20 | - | 13 (45) |
| PCL-R | - | 4 (14) |
| PCL:SV | - | 1 (3) |
| START | - | 3 (10) |
| VRAG | - | 4 (14) |
| VRS | - | 1 (3) |
| Sample characteristics | ||
| Male participants (n (%)) | 1115 (80) | 1549 (81) |
| Age (years; mean (SD)) | 37.0 (2.5) | 36.4 (3.8) |
| Psychotic disorder (n (%)) | 508 (37) | 931 (81) |
| Personality disorder (n (%)) | 122 (9) | 449 (36) |
| Violent index offence (n (%)) | 715 (51) | 1089 (73) |
| Study design | ||
| Sample size (mean (SD)) | 232 (233) | 66 (54) |
| Temporal design | ||
| Retrospective | 0 (0) | 12 (41) |
| Prospective | 6 (100) | 15 (52) |
| Pseudo-prospective | 0 (0) | 2 (7) |
| Length of follow-up (days; mean (SD)) | 1.0 (0.0)) | 692.2 (978.6) |
| Outcome | ||
| Violent outcome measured | ||
| Only interpersonal physical violence | 2 (33) | 19 (66) |
| Including verbal aggression | 4 (67) | 10 (34) |
| Rate of violence during study (mean (SD)) | 23.8 (15.3) | 32.6 (16.2) |
Note: Data are number (%) of samples, unless stated otherwise. Percentages are reported in relation to only those samples where information was available for the variable in question. SD = standard deviation.