In the previous post I have added the following including a PS note at the end:
—start insertion 2013/03/17—
7% of all stabbing suicides are committed in the presence of someone, at least according to a single study (Start et al 1992). Of course, all homicides are committed in the presence of someone, as this is the only way person X can stab person Y. Applying these percentages to the numbers of step two (the study did not distinguish between vertical and horizontal stabbing, nor whether or not this was in the chest of abdomen or head-and-neck regions.
0.07 x 42 = 2.94 suicides by stabbing per year in the presence of someone.
1.00 x 81.5 = 81.5 homicides by stabbing per year in the presence of someone.
The ratio suicide:homicide would be the following: 1:27.7.
For sake of caution I will use the smaller ratio of 1:11 suicide:homicide, even though it is apparent that this number greatly more skewed towards homicide just based on the presence of Mart during Eline’s suicide. No clean data exists to determine how much exactly.
—end insertion 2013/03/17—