title: Developmental course of impulsivity and capability from age 10 to age 25 as related to trajectory of suicide attempt in a community cohort.
abstract: Hierarchical linear models were used to examine trajectories of impulsivity and capability between ages 10 and 25 in relation to suicide attempt in 770 youths followed longitudinally: intercepts were set at age 17. The impulsivity measure assessed features of urgency (e.g., poor control, quick provocation, and disregard for external constraints); the capability measure assessed aspects of self-esteem and mastery. Compared to nonattempters, attempters reported significantly higher impulsivity levels with less age-related decline, and significantly lower capability levels with less age-related increase. Independent of other risks, suicide attempt was related significantly to higher impulsivity between ages 10 and 25, especially during the younger years, and lower capability. Implications of those findings for further suicidal behavior and preventive/intervention efforts are discussed.
authors.affiliation: Department of Psychiatry, College of Physicians and Surgeons, Columbia University, New York, NY, USA. sk57@columbia.edu
authors.forename: Stephanie
authors.initials: S
authors.lastname: Kasen
authors.forename: Patricia
authors.initials: P
authors.lastname: Cohen
authors.forename: Henian
authors.initials: H
authors.lastname: Chen
mesh_terms: D000293:Adolescent; D041923:Adolescent Development; D000328:Adult; D002648:Child; D002657:Child Development; D016001:Confidence Intervals; D005260:Female; D006801:Humans; D007175:Impulsive Behavior / Q000523:psychology*; D016015:Logistic Models; D008137:Longitudinal Studies; D008297:Male; D008960:Models, Psychological; D015999:Multivariate Analysis; D016017:Odds Ratio; D011581:Psychological Tests; D013406:Suicide, Attempted / Q000523:psychology*; D014481:United States; D055815:Young Adult