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Genetic factors influence risk of suicide throughout life rather than at a moment in time
Genetic factors influence the risk for suicide ideations and attempts throughout life rather than at a moment in time suggests a recent study published in the JAMA Psychiatry
Suicide rates have been increasing among youth in the US. While the heritability of suicide risk is well established, there is limited understanding of how genetic risk is associated with suicidal thoughts and behaviors in young children.
A study was conducted to examine whether genetic susceptibility to suicide attempts (SAs) is associated with suicidal thoughts and behaviors in children.
This case-control study examined data from the Adolescent Brain Cognitive Development (ABCD) study, a population-based longitudinal study of 11 878 US children enrolled at age 9 and 10 years from September 2016 to November 2018. Youth reports of suicidal ideation (SI) and SAs were obtained from the Kiddie Schedule for Affective Disorder and Schizophrenia at baseline and 2 subsequent years. After conservative quality control of genotype data, this analysis focused on 4344 unrelated individuals of European ancestry. Data analysis was conducted from November 2020 to February 2022.
Results
- Of 4344 children of European ancestry significant associations were found between children's SA PRSs and their lifetime SAs with the most robust association in the follow-up year 2
- These associations remained significant after accounting for children's sociodemographic backgrounds, psychopathology symptoms, parental histories of suicide and mental health, and PRSs for major depression and attention-deficit/hyperactivity disorder
- Children's depressive mood and aggressive behavior were the most significant partial mediators of SA genetic risk on SAs
- Children's behavioral problems, such as attention problems, rule-breaking behavior, and social problems, also partially mediated the association of SA PRSs with SAs
This study's findings indicate that there may be genetic factors associated with SA risk across the life span and suggest behaviors and conditions through which the risk could be mediated in childhood. Further research is warranted to examine whether incorporating genetic data could improve the identification of children at risk for suicide.
Reference:
Lee PH, Doyle AE, Silberstein M, et al. Associations Between Genetic Risk for Adult Suicide Attempt and Suicidal Behaviors in Young Children in the US. JAMA Psychiatry. Published online August 31, 2022. doi:10.1001/jamapsychiatry.2022.2379
Dr. Shravani Dali has completed her BDS from Pravara institute of medical sciences, loni. Following which she extensively worked in the healthcare sector for 2+ years. She has been actively involved in writing blogs in field of health and wellness. Currently she is pursuing her Masters of public health-health administration from Tata institute of social sciences. She can be contacted at editorial@medicaldialogues.in.
Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751