Table 2.
Predictors of rates of violence in individuals classified as high risk: binomial logistic regression
| Rate of violence in high-risk group (k = 57)a |
||||
|---|---|---|---|---|
| Univariate |
Multivariable |
|||
| OR (95% CI) | P | OR (95% CI) | P | |
| General risk level of sample: rate in non-high-risk groups |
1.07 (1.06-1.08) |
<0.0001 |
1.07 (1.06-1.07) |
<0.0001 |
| Type of risk assessment instrument: actuarial v. SPJ |
0.53 (0.45-0.63) |
<0.0001 |
0.75 (0.62-0.92) |
0.004 |
| Location of outcome: community v. other | 0.36 (0.28-0.46) | <0.0001 | NSb | |
| Choice of outcome measure: conviction v. other | 0.66 (0.55-0.78) | <0.0001 | NSc | |
| Gender: percentage men |
0.97 (0.96-0.98) |
0.002 |
0.98 (0.97-0.99) |
<0.0001 |
| Age: mean age of participants | 0.96 (0.95-0.98) | <0.0001 | NSd | |
| Geographic location: North America v. other | 1.02 (0.87-1.20) | 0.80 | NA | |
NA, not applicable; NS, not significant and dropped from model; OR, odds ratio; SPJ, structured professional judgement.
a.
All analyses adjusted for sample size, time at risk and study design (prospective v. non-prospective); k = number of samples.
b.
Variable dropped second from backward stepwise model.
c.
Variable dropped third from backward stepwise model.
d.
Variable dropped first from backward stepwise model.