Full Cox models for general and serious offences in the total sample (n = 127)
| Characteristic | General offences | Serious offences | ||
|---|---|---|---|---|
| RR (95% CI) | p value | RR (95% CI) | p value* | |
| Demographics | ||||
| Age | 0.98 (0.86–1.12) | 0.79 | 0.88 (0.74–1.05) | 0.15 |
| Ethnicity | ||||
| Western | ref | ref | ||
| Caribbean | 2.25 (0.86–5.93) | 0.10 | 1.71 (0.53–5.57) | 0.37 |
| Moroccan | 3.07 (1.04–9.10) | 0.043 | 2.07 (0.55–7.81) | 0.28 |
| Cape Verdean | 2.65 (0.73–9.69) | 0.14 | 0.75 (0.10–5.50) | 0.78 |
| Other non-Western | 1.62 (0.52–5.08) | 0.41 | 1.27 (0.29–5.54) | 0.75 |
| Delinquency and drug use | ||||
| Past offences, n | 1.45 (1.17–1.79) | < 0.001 | 1.71 (1.33–2.23) | < 0.001 |
| Cannabis use, yr | 1.21 (0.90–1.63) | 0.20 | 1.39 (0.92–2.09) | 0.12 |
| Behaviour | ||||
| Reactive aggression | 1.26 (0.87–1.81) | 0.22 | 0.95 (0.60–1.52) | 0.84 |
| Proactive aggression | 1.01 (0.72–1.42) | 0.94 | 1.07 (0.70–1.62) | 0.76 |
| Psychopathy, behavioural | 1.08 (0.78–1.50) | 0.63 | 1.54 (1.00–2.36) | 0.049 |
| Neurobiology | ||||
| Heart rate | 0.88 (0.65–1.19) | 0.39 | 0.62 (0.38–0.99) | 0.023 |
| Error-related negativity | 1.61 (1.13–2.28) | 0.008 | 1.52 (0.96–2.40) | 0.08 |
| Positivity error | 0.93 (0.69–1.26) | 0.65 | 0.75 (0.49–1.16) | 0.27 |
CI = confidence interval; RR = risk ratio.
↵* Considered significant at p < 0.05.