A further explanation for the importance of Cluster B personality
disorder in predicting future attempts among depressed ideators
relates to Joiner’s interpersonal-psychological theory (Joiner, 2005).
This theory posits that three domains must be present in an individual
for suicide to occur. The first two domains, perceived burdensomeness
and thwarted belongingness, confer the desire for
suicide (e.g., suicidal ideation).