Abstract：
:Childhood traumatic experiences and impulsive aggression are strong predictors of suicide ideation in youth. This study examines whether a gene panel previously associated with impulsive aggression, together with a measure of traumatic experience, will predict suicidal ideation in youth. The sample consisted of 158 youth (ages 9-17 years) of European ancestry that participated in a case-control study for childhood aggression. The Massachusetts Youth Screening Instrument (MAYSI-2) was used to examine suicide ideation and traumatic experiences. The impulsive aggression gene panel consists of 5 markers across 5 susceptibility genes (CRH, CRHR2, MC2R, OXTR, BDNF). A multi-gene risk score (MRS) for each individual was calculated by taking the total number of risk genotypes for that person. The covariates for the multiple regression model included sex, age, symptoms of anxiety/depression, MRS, traumatic experiences, and MRS x traumatic experience interaction. Results show the MRS x traumatic experience interaction term and the anxious/depressed symptoms to be significant predictors of suicide ideation in the full model. Importantly, genetic susceptibility to impulsive aggression and traumatic experiences remained a significant predictor for suicide ideation over and above the youth's level of anxiety and depression. This finding may have important implications for early intervention for youth suicide-related behaviors.
journal_name
Psychiatry Resjournal_title
Psychiatry researchauthors
Koyama E,Zai CC,Bryushkova L,Kennedy JL,Beitchman JHdoi
10.1016/j.psychres.2019.112726subject
Has Abstractpub_date
2020-03-01 00:00:00pages
112726eissn
0165-1781issn
1872-7123pii
S0165-1781(19)31698-1journal_volume
285pub_type
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