Table 2.
Demographic and Developmental Characteristics of Stranger-Homicide Offenders with Psychosis
| Stranger-Homicides, n (%) | Family-Homicides, n (%) | Odds Ratio or t Statistic | 95% Confidence Interval of the Odds Ratio, P Value | |
| Total | 42 | 42 | ||
| Male | 40 (95) | 33 (79) | 5.46 | 1.10–27.0a |
| Mean age (SD) | 31.7 (SD 11.1) | 32.9 (SD 10.2) | T = 0.52 | 0.56 |
| Ever married | 12 (29) | 18 (43) | 0.53 | 0.22–1.32 |
| Employed | 9 (21) | 9 (21) | 1.0 | 0.35–2.84 |
| Homelessb | 7 (17) | 0 (0) | — | — |
| Low intelligence | 6 (14) | 5 (12) | 1.23 | 0.35–4.40 |
| History of child abuse | 8 (19) | 7 (17) | 1.17 | 0.38–3.60 |
| Mean years of education (SD) | 10.7 (3.0) | 10.5 (2.3) | T = −0.54 | P = 0.59 |
| History consistent with conduct disorder | 16 (38) | 6 (14) | 3.69 | 1.27–10.7a |
| Repeated antisocial conduct as an adult | 17 (40) | 7 (17) | 3.40 | 1.27–9.42a |
| Prior violent offence | 19 (45) | 14 (33) | 1.65 | 0.68–4.00 |
| Prior nonviolent offence | 16 (38) | 12 (29) | 1.54 | 0.62–3.84 |
a
Significant at <0.05.
b
Significant at P = 0.01 using Fisher's exact test.