Table 5.
Multinomial logistic regression for NCRMD provincial characteristics (n = 1575)
| Predictor | Ontario, compared with Quebeca | British Columbia, compared with Quebeca | Ontario, compared with British Columbiaa | |||
|---|---|---|---|---|---|---|
|
|
|
|
||||
| OR | (95% CI) | OR | (95% CI) | OR | (95% CI) | |
| Female | 1.29 | (0.92 to 1.80) | 1.04 | (0.65 to 1.68) | 1.23 | (0.75 to 2.03) |
| Aboriginal status | 3.15 | (1.50 to 6.59)b | 5.20 | (2.30 to 11.76)c | 0.61 | (0.29 to 1.25) |
| Age at the index offence | 0.99 | (0.96 to 1.01) | 0.99 | (0.95 to 1.03) | 1.00 | (0.96 to 1.04) |
| Diagnosis (nonexclusive) | ||||||
| Psychosis | 1.16 | (0.71 to 1.92) | 1.60 | (0.75 to 3.40) | 0.73 | (0.33 to 1.61) |
| Mood | 0.46 | (0.26 to 0.80)b | 0.56 | (0.24 to 1.31) | 0.81 | (0.33 to 2.00) |
| SUD | 1.21 | (0.93 to 1.58) | 1.87 | (1.32 to 2.66)c | 0.65 | (0.44 to 0.94)d |
| PD | 1.14 | (0.79 to 1.66) | 0.85 | (0.49 to 1.47) | 1.35 | (0.76 to 2.40) |
| Presence of psychiatric history | 1.05 | (0.81 to 1.36) | 1.18 | (0.82 to 1.68) | 0.89 | (0.61 to 1.31) |
| Age at first offence against person | 1.02 | (0.99 to 1.05) | 1.02 | (0.98 to 1.06) | 1.01 | (0.96 to 1.05) |
| Presence of criminal history | ||||||
| NCRMD | 0.40 | (0.25 to 0.64)c | 0.33 | (0.15 to 0.73)b | 1.19 | (0.51 to 2.77) |
| Criminal | 0.91 | (0.65 to 1.28) | 0.81 | (0.52 to 1.27) | 1.13 | (0.69 to 1.85) |
| Against person | 2.01 | (1.34 to 3.03)b | 1.07 | (0.59 to 1.93) | 1.88 | (1.00 to 3.54) |
| Index—most severe offence (others as reference) | ||||||
| Homicides or attempted | 2.08 | (1.25 to 3.41)b | 1.89 | (0.91 to 3.95) | 1.10 | (0.52 to 2.30) |
| Assault and sexual assaults | 0.88 | (0.61 to 1.27) | 1.41 | (0.82 to 2.42) | 0.62 | (0.36 to 1.10) |
| Other crimes against persono | 0.74 | (0.51 to 1.06) | 0.97 | (0.56 to 1.70) | 0.76 | (0.42 to 1.35) |
| Property crimes | 0.41 | (0.25 to 0.70)c | 0.70 | (0.35 to 1.41) | 0.59 | (0.27 to 1.27) |
−2 Log Likelihood = 2560.22; χ2 = 169.78; df = 32, P < 0.001; Nagelkerke pseudo-R2 = 12.2%; proportional chance criteria = 47.8%; model accuracy rate = 61.5%
a
Reference category;
b
P < 0.01;
c
P < 0.001;
d
P < 0.05
NCRMD = not criminally responosible on account of mental disorder