Table 5.
Multivariate logistic regression model of risk factors for the persistent 1 % of the total population with 3 or more convictions for violent crime from 1973 to 2004 (women excluded), compared to the low-persistence group
| Predictor | B | Odds ratio | 95 % CI |
|---|---|---|---|
| Any missing school grade | 0.2 | 1.3a | 1.2–1.4 |
| 1st conviction for violence at age 15–18 years | 0.7 | 2.0a | 1.9–2.0 |
| Any conviction for theft | 0.7 | 2.0a | 1.9–2.0 |
| Any conviction for a drug-related offense | 0.7 | 2.0a | 1.9–2.1 |
| Any conviction for a traffic violation | 0.6 | 1.8a | 1.7–1.9 |
| Any diagnosis of a major mental disorder | 0.2 | 1.2b | 1.0–1.3 |
| Any diagnosis of a personality disorder | 0.8 | 2.3a | 2.1–2.4 |
| Any diagnosis of a substance use disorder | 0.7 | 1.9a | 1.9–2.0 |
| Parent of non-Scandinavian ethnicity | 0.1 | 1.1a | 1.0–1.1 |
| Parent with any conviction for a violent crime | 0.3 | 1.3a | 1.2–1.4 |
| Parent with any conviction for a nonviolent crime | 0.1 | 1.1a | 1.1–1.1 |
| Parent diagnosed with a psychiatric disorder | 0.1 | 1.1a | 1.1–1.2 |
| Parent diagnosed with a substance use disorder | – | ||
| Parent who died before child’s 18th birthday | 0.1 | 1.1b | 1.0–1.1 |
aOdds ratios significant at P < 0.001
bOdds ratios significant at P < 0.05