JAMA Pediatr 169 (7): 673 - 677, 2015. doi: 10.1001 / jamapediatrics.2015.0465 Etiology In children and adolescents, risk of suicidal behavior is influenced by the presence of other psychiatric disorders and other disorders that affect the brain, family history, psychosocial factors, and environmental factors (see table Risk Factors for Suicidal Behavior in Children and Adolescents).