Abstract (eng)
Self-injury is a highly prevalent behaviour in its nonsuicidal version and in its suicidal version, a
major causes of death. Even so, up to this day no nomenclature exists, to distinguish between these
two behaviours - beyond the intention to die.
To explore the possibility to distinguish self-injury beyond the intention do die, in this
meta-analysis the Interpersonal theory of suicide was used as a proxy nomenclature, to observe how
nonsuicidal self-injury relates to suicide attempts. The focus of this analysis was the moderation
quality of nonsuicidal self-injury on the relation of suicide ideation and suicide attempts, compared
to the models proposed moderator 'acquired capability for suicide scale'. Furthermore it is
investigated if the model estimations differed, when nonsuicidal self-injury is used, in the functional
role of suicide attempt, in general and if the moderators for acquired capability for suicide scales are
applied.
Results: Nonsuicidal self-injury showed itself, with R2 =17 , as a good moderator, but the
acquired capability for suicide scale was superior with R2=36, the model estimations did not differ
differ, when using suicidal self-injury instead of suicide attempt. As the model was not capable to
distinguish between nonsuicidal self injury and suicide attempts, it can be stated that the relation of
suicide ideation, non suicidal self injury and suicide attempt is more complex then the categorical
categorization reflects and is not properly represented by a simple moderation or mediation
relationship.