Table 2.
Prevalence Rates of Mental Disorders for Aboriginal and Non-Aboriginal Offenders (N = 1110).
| Lifetime | Current | |||||
|---|---|---|---|---|---|---|
| Disorder | Aboriginal (n = 230), % (n) | Non-Aboriginal (n = 880), % (n) | χ2 (df = 1) | Aboriginal (n = 230), % (n) | Non-Aboriginal (n = 880), % (n) | χ2 (df = 1) |
| Any disorder | 93.5 (215) | 77.7 (684) | 29.38** | 83.0 (191) | 59.7 (525) | 43.55** |
| Any Axis I disorder | 89.6 (206) | 73.2 (644) | 27.29** | 83.0 (191) | 59.7 (525) | 43.55** |
| Axis I disorders | ||||||
| Mood disorders | 30.0 (69) | 30.2 (266) | 0.004 | 17.8 (41) | 16.7 (147) | 0.16 |
| Psychotic disordersa | 2.6 (6) | 5.2 (46) | 2.8 | 1.7 (4) | 3.8 (33) | 2.29 |
| Alcohol/substance use disorders | 85.2 (196) | 61.0 (537) | 47.59** | 76.5 (176) | 42.6 (375) | 83.86** |
| Anxiety disorders | 34.8 (80) | 33.9 (298) | 0.07 | 32.2 (74) | 28.9 (254) | 0.96 |
| Eating disorders | 2.6 (6) | 1.0 (9) | 2.35 | 1.7 (4) | 0.6 (5) | 1.82 |
| Pathological gambling | 15.7 (36) | 8.4 (74) | 10.72* | 10.9 (25) | 4.5 (40) | 13.23** |
| Any Axis II disorder | 63.0 (145) | 44.1 (388) | 26.24** | — | — | — |
| Axis II disorders | ||||||
| Borderline personality disorder | 21.7 (50) | 14.3 (126) | 7.53* | — | — | — |
| Antisocial personality disorder | 60.4 (139) | 39.9 (351) | 31.23** | — | — | — |
“—” indicates a value was not possible. Percentages may not add to 100% as participants could meet the diagnostic criteria for more than 1 disorder. Yates correction for continuity is presented when the expected cell frequency was less than 5. *P < 0.01. **P < 0.001.
aPsychotic disorders included are schizophrenia, schizophreniform, schizoaffective, delusional disorder, brief psychotic disorder, substance abuse or general medical condition causing psychotic symptoms, substance-induced psychotic disorder, and psychotic disorder not otherwise specified.