Sociodemographic and clinical predictors of violent behaviour Factor Risk ratio (95% CI) adjusted for all other variables in table Age:   19-39 years 1.53 (1.12 to 2.02)*   40-64 years 1 Special education:   No 1   Yes 1.61 (1.08 to 2.20)* Victimised in past year:   No 1   Yes 1.50 (1.08 to 2.02)* Drug use/misuse:   None 1   One or more  1.49 (1.09 to 1.95)** Assault (past 2 years):   No 1   Yes   2.04 (1.54 to 2.56)*** History of conviction for violence:   No 1   Yes 1.44 (1.02 to 2.61)* Randomisation:   Standard case management 1   Intensive case management 1.08 (0.78 to 1.44)  * P<0.05, **P<0.01, ***P<0.001.