Adult anxiety disorders are triggered by a variety of influences with almost half of the adult conditions subsequent to some type of psychiatric illness in youth and adolescence. In fact, the specific illnesses detected in youth are clues as to what kinds of anxiety disorders — there are several — the youth would have as adults.

The results underscore the importance of early diagnosis and prevention of anxiety disorders, and suggest that different anxiety disorders may have different roots.

The NIMH-funded study is published in the February issue of the Archives of General Psychiatry.

Anxiety disorders are among the most common psychiatric illnesses, with 28.81 percent of American adults diagnosed with one or more at some point in life. They include social and other phobias, posttraumatic stress disorder (PTSD), generalized anxiety disorder, panic disorder, and obsessive-compulsive disorder.

In this study, researchers examined the psychiatric histories, from ages 11 through 32, of 9,632 adults. Of the 232 adults with anxiety disorders, the most common childhood psychiatric illnesses — one-third of them — were anxiety disorders, followed by depression.

The researchers also found links between some disorders diagnosed in adulthood and those diagnosed during youth. Adults with PTSD had histories of extreme defiance and conduct disorders in childhood. Adults with obsessive-compulsive disorders tended to have had delusional beliefs and hallucinations as children. Phobias in adulthood tended to be linked to specific phobias that occurred during childhood.

Considering psychiatric history when diagnosing adult anxiety disorders could benefit diagnosis, prevention, and treatment, the study’s authors write.

Source: NIH/National Institute of Mental Health