NEW YORK (Reuters Health) - Contrary to the prevailing belief, it is nearly as likely that major depressive disorder will develop into a generalized anxiety disorder, as the reverse pattern, according to a study published in the June issue of the Archives of General Psychiatry. Using data from a long-term study, the researchers examined the sequential and cumulative relationship between generalized anxiety disorder and major depressive disorder. Forty-eight percent of lifetime depression cases had lifetime anxiety disorder, and 72 percent of lifetime anxiety cases had lifetime depression. Of these, 66 percent had recurrent major depressive disorder and 47 percent had recurrent generalized anxiety disorder. Because of the strong relation between generalized anxiety disorder and major depressive disorder, they could be classified as a single category of distress disorders, Moffitt and colleagues suggest. read more
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