The Relationship Between Nonsuicidal Self-Injury Age of Onset and Severity of Self-Harm.
This study examined how age of nonsuicidal self-injury (NSSI) onset relates to NSSI severity and suicidality using decision tree analyses (nonparametric regression models that recursively partition predictor variables to create groupings). Those with an earlier age of NSSI onset reported greater NSSI frequency, NSSI methods, and NSSI-related hospital visits. No significant splits were found for suicide ideation or attempts, although those with an earlier onset were more likely to have a suicide plan. Overall, findings suggest that onset of NSSI before age 12 is associated with more severe NSSI and may be a crucial age for prevention efforts.
Psychology, Temple University, Philadelphia, PA, USA.
Brooke A
BA
Ammerman
University of Southern California, Los Angeles, CA, USA.
Ross
R
Jacobucci
Harvard University, Cambridge, MA, USA.
Evan M
EM
Kleiman
Psychology, Temple University, Philadelphia, PA, USA.
Lauren L
LL
Uyeji
Psychology, Temple University, Philadelphia, PA, USA.
Michael S
MS
McCloskey
D000293:Adolescent; D000294:Adolescent Behavior; D017668:Age of Onset; D005260:Female; D006801:Humans; D008297:Male; D011316:Preventive Psychiatry / Q000379:methods*; D012307:Risk Factors; D016728:Self-Injurious Behavior / Q000175:diagnosis / Q000453:epidemiology / Q000517:prevention & control / Q000523:psychology; D012720:Severity of Illness Index; D059020:Suicidal Ideation; D013406:Suicide, Attempted / Q000517:prevention & control*