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Panic attacks and the dexamethasone suppression test

Published Online:https://doi.org/10.1176/ajp.140.8.1063

Of 51 patients with panic attacks, 11.8% (7.8% with a correction factor) had a positive dexamethasone suppression test. This is significantly lower than the rate for melancholia. This difference suggests that panic attacks and major depression may be associated with different biological mechanisms.

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