Table 1. Studies included.
|
SMI |
||||||||
|---|---|---|---|---|---|---|---|---|
| Studies | Country | Sample | Gender | Mentally ill | Schizophrenia | Mood disorders | Other diagnoses | Method of homicide |
| 1.Hughes,Macaulay and Crichton (2012) | England | 107 | N/A | 96% | 49 | 8 | 50 | (n=57) 100% sharp instrument |
| 2. Rodway, Flynn, Swinson, Roscoe, Hunt, Windfuhr, Kapur, Appleby and Shaw (2009) | England and Wales | 3930 | 90% male 10% female |
27% | 211 | 249 | 587 | (n=460) 48% sharp instrument 11% blunt instrument 3% gun 17% kicking/hitting 11% strangulation 6% suffocation/asphyxiation/drowning 12% other |
| 3. Catanesi, Carabellese, Troccoli, Candello, Grattagliano, Solarino and Fortunato (2011) | Italy | 103 | 85% male 15% female |
81% | 24 | 9 | 54 | (n=103) 39% sharp instrument 11% blunt instrument 20% gun 10% asphyxia 20% other |
| 4. Häkkänen and Laajasalo (2006) | Finland | 182 | 90% male 10% female |
48% | 43 | / | 102 | (n=43) 58% sharp instrument 31% blunt instrument 9% gun 14% kicking /hitting 14% strangulation |
| 5. Matejkowski, Solomon and Cullen (2008) | USA | 95 | 77% male 23% female |
100% | 27 | 72 | 14 | (n=95) 26% sharp instrument 14% blunt instrument 48% gun 13% strangulation/suffocation 4% drowning 4% other |
| 6. Shaw, Amons, Hunt, Flynn, Turnbull, Kapur and Appleby (2004) | England and Wales | 1594 | 87% male 13% female |
31% | 74 | 116 | 276 | (n=1432) 37% sharp instrument 13% blunt instrument 4% gun 19% kicking/hitting 10% strangulation/suffocation 13% other |
| 7. Häkkänen-Nyholm, Repo-Tiihonen, Lindberg, Salenius & Weizmann-Henelius (2009) | Finland | 676 | N/A | 84% | 68 | / | N/A | (n=613) 58% sharp instrument 16% strangulation/suffocation |
| 8. Putknonen, Collander, Marja-Liisa, Honkasalo and Lönnqvist (2001) | Finland | 125 | 100% female | 89% | 34 | / | 77 | (n=111) 64% sharp instrument 8% drowning 3% strangulation/suffocation |
| 9. Yoon, Kim, Choi, Lyu, Kwon, Jang and Park (2011) | Republic of Korea | 62 | 39% male 61% female |
100% | / | 62 | / | (n=62) 21% sharp instrument 14% blunt instrument 11% hitting 35% suffocation 13% other |
Note. Number of SMI offenders and other diagnosis may exceed the total of sample size since more than one diagnosis per offender is possible and offenders with no diagnosis were not included. More than one method of homicide per offender is possible.