The predictive effect of depression and impulsivity on suicidal ideation in violent criminals / 中华行为医学与脑科学杂志

ABSTRACT

Objective To explore the predictive effect of depression and impulsivity on suicidal ideation in violent criminals.methods 423 violent criminals were assessed by Self-rating Idea of Suicide Scale(SIOSS),Patient Health Questionnaire (PHQ-9) and Barratt Impulsiveness Scale(BIS-11).Result sPeople with suicidal ideation accounted for 17.04% of the total number of violent criminals.The scores of the group with suicidal ideation (respectively (4.95±4.82),(56.79±8.68),(12.95±2.29),(19.03±3.91),(28.81±4.95)) were higher than those without suicidal ideation group (respectively (4.95±4.82),(56.79±8.68),(12.95±2.29),(19.03±3.91),(28.81±4.95)) in depression and every dimension of impulsivity(attentional impulsivity,motor impulsivity and non-planning impulsivity) (t=9.49,t=4.61,t=4.04,t=3.88,t=3.08) (all P<0.01).Positive correlation was observed between suicidal ideation,depression and impulsivity(r=0.156-0.628,P<0.01),while sleeping factor was not associated with non-planning impulsivity.According to the multi-factoral regression module,depression and nonplanning impulsivity scores had positive prediction on suicidal ideation(R2=0.419,SIOSS=-2.471+ 0.192× depression+ 0.149× nonplanning impulsivity).Conclusion There is a close relationship in suicidal ideation,depression and impulsivity,meanwhile depression and nonplanning impulsivity can predict the suicidal ideation.