Evidence for an independent relationship between anxiety and suicidality has been mixed. Researchers from the Center for Mental Health Policy and Services Research at the University of Pennsylvania Perelman School of Medicine examined the relationship between response to treatment for an anxiety disorder in childhood and suicidal ideation, plans, and attempts at a follow-up interval of seven to 19 years. In the study, 66 adults were assessed, having completed CBT treatment for anxiety as children. Information regarding suicidality at follow-up was obtained via the World Mental Health Survey Initiative Version of the World Health Organization Composite International Diagnostic Interview and the Beck Depression Inventory.
The follow-up data indicated that participants who responded favorably to CBT during childhood were less likely to endorse lifetime, past-month, and past-two-week suicidal ideation than were treatment nonresponders. This was consistent across self-report and interview-report of suicidal ideation.
“Results suggest more chronic and enduring patterns of suicidal ideation among those with anxiety in childhood that is not successfully treated,” the researchers stated. “This study adds to the literature that suggests successful CBT for childhood anxiety confers long-term benefits and underscores the importance of the identification and evidence-based treatment of youth anxiety.”
For more on research into suicide prevention, see the Psychiatric News article, "Novel Suicide-Prevention Treatment Targets Poor Sleep."