| News / Science News |
Computerized adaptive screener may help identify youth at risk for suicide
Researchers have developed a computerized adaptive screener to identify youth at risk for attempting suicide. The screener, called the computerized adaptive screen for suicidal youth (CASSY), consists of 11 questions on average and correctly identified 82.4% of youth who went on to attempt suicide in the three months following screening.
Computerized adaptive screener may help identify youth at risk for suicide. Photo: Paola Chaaya/Unsplash
“No young person should die by suicide, which is why we have made bending the curve in suicide rates a priority area of research for our institute,” said Joshua A. Gordon, M.D., Ph.D., director of NIMH. “The CASSY screener represents an important advance in identifying those adolescents who are at risk for suicide, so they can be connected with the critical support services they need.”
Emergency departments are a common place where youth access emergency care, suggesting this environment is an optimal one in which to implement universal screening for suicide risk.
While there are currently brief suicide questionnaires that detect suicide risk, these screeners often have only moderate sensitivity (the ability of a test to correctly identify people with the targeted condition) or specificity (the ability of a test to correctly identify people without the targeted condition).
The new screener uses an adaptive approach which offers a chance to improve the sensitivity of screening tools, as it uses a person’s initial responses to help vary and personalize the later questions — thus the screener “adapts” to try to best fit each person who takes it.
In the first phase of the study, led by Cheryl King, Ph.D., a professor of psychiatry at the University of Michigan, Ann Arbor, researchers recruited youth between the ages of 12 and 17.
Youth who were admitted to an emergency department at the study sites during randomly selected shifts completed self-report questionnaires assessing suicide ideation and rumination; history of suicide attempts; self-injury; depression; hopelessness; alcohol and drug misuse; family, school, and social connectedness; physical and sexual abuse; and other factors that have been found to be related to suicide risk.
Youth and their parents then received follow-up calls three months after this initial screening to learn if the youth had tried to end their life in the intervening months.
The researchers used these data to create the CASSY. In the second phase of the study, the researchers tested the ability of CASSY to predict suicide risk in a new set of youth, aged 12 to17. Youth completed the CASSY as well as a subset of the questionnaires given to participants in the first phase of the study.
Similarly, to phase 1 of the study, youth and their parents were contacted three months after completing the initial screeners to learn whether the youth had tried to end their life in the past three months.
When researchers looked at the data from the second phase of the study, they found 6% of participants had attempted suicide in the three months between initial screening and follow-up. CASSY correctly identified 82.4% of youth who had attempted suicide in the three months after screening and 72.5% of people who did not attempt suicide in the three months after screening.
“As we strive to prevent more youth suicides, identifying as many youths at risk as possible should be prioritized. Yet, emergency departments are often challenged by limited resources for mental health follow-up, such that universal screening becomes more feasible if the screen’s false positive rate is relatively low,” said King.
“Because CASSY is dimensional, it offers the ability for hospitals to alter the sensitivity and specificity of the screen, balancing the false positive and negative rates to best fit each specific emergency department’s resource needs.”
The findings suggest that CASSY provides a valuable tool for identifying youth at risk for suicide in the months following screening and may help emergency personnel identify individuals who are at need of increased support and suicide prevention services. (National Institutes of Health)
YOU MAY ALSO LIKE
