Table 2.
Cluster analysis results showing details of suicide death and the events immediately preceding it for people dying from suicide in Toronto from 1998 to 2010
| Variable | Cluster 1 n = 304 % | Cluster 2 n = 488 % | Cluster 3 n = 561 % | Cluster 4 n = 584 % | Cluster 5 n = 949 % | χ2 | df | P |
|---|---|---|---|---|---|---|---|---|
| Suicide occurred at home | 82.2 | 71.5 | 74.9 | 67.3 | 68.4 | 1991 | 12 | <0.001 |
| Violent cause of deatha | 56.9 | 81.6 | 70.2 | 71.7 | 73.0 | 65.2 | 4 | <0.001 |
| Specific cause of death | 219.9 | 36 | <0.001 | |||||
| Hanging | 32.6 | 36.1 | 33.7 | 19.0 | 27.7 | |||
| Jumping from height | 13.8 | 24.6 | 19.8 | 32.2 | 25.4 | |||
| Self-poisoning | 30.9 | 11.7 | 26.2 | 22.8 | 14.3 | |||
| Subway or train collision | 3.0 | 7.0 | 5.7 | 10.3 | 9.6 | |||
| Nonhanging asphyxia | 12.2 | 6.8 | 3.6 | 5.5 | 9.6 | |||
| Firearm | 1.6 | 7.0 | 4.5 | 2.2 | 6.6 | |||
| Cutting and (or) stabbing | 2.0 | 3.5 | 3.0 | 3.8 | 3.5 | |||
| Drowning and (or) hypothermia | 3.3 | 2.0 | 2.5 | 2.9 | 2.0 | |||
| Fire, burns, and (or) electrocution | 0.7 | 1.4 | 0.9 | 1.4 | 1.3 | |||
| Suicide note left | 34.5 | 29.1 | 25.1 | 27.4 | 35.0 | 22.1 | 4 | <0.001 |
| Contact with psychiatry and (or) emergency department services in past week | 11.5 | 4.5 | 11.8 | 14.2 | 2.7 | 89.9 | 4 | <0.001 |
a
All suicide deaths not occurring by self-poisoning or nonhanging asphyxia are considered violent.