The website calculator is built based on the following model coefficients.
| Variable | Model coefficient |
| Sex (female) | -0.8407 |
| Age at discharge | -0.0299 |
| Previous violent crime | 1.1682 |
| Previous serious violent crime | -0.4480 |
| Primary diagnosis at discharge
– Schizophrenia spectrum – Bipolar disorder – Unipolar depression – Anxiety disorders – Other |
0 0.5994 0.2867 0.1142 0.304 |
| Drug use disorder at hospitalisation or discharge | -0.1188 |
| Alcohol use disorder at hospitalisation or discharge | 0.2288 |
| Personality disorder at discharge | 0.3052 |
| Employment before admission | -0.578 |
| Number of previous inpatient episodes (five or more) | -0.4676 |
| Lifetime drug use disorder | 0.7964 |
| Length of stay in forensic hospital (12 months or more) | -0.4576 |
Note. In the original FoVOx paper Appendix table 6, the coefficients for sex and age were mistakenly exchanged.