Hypothyroidism and hyperthyroidism in anxiety disorders revisited: new data and literature review.

Background: The need for thyroid screening of patients presenting with panic disorder (PD), social phobia (SP) or generalized anxiety disorder (GAD) remains uncertain.

Methods: We examined thyroid histories and serum testing in 169 patients, 92 with PD, 48 with SP, and 29 with GAD. Combined prevalence rates of hyperthyroidism and hypothyroidism were compared with expected rates (2.

Longitudinal outcome with pharmacotherapy in a naturalistic study of panic disorder.

Background: Current recommendations suggest that pharmacotherapy for patients with panic disorder should be continued for at least 1 year [Am. J. Psychiatry 155 (1998) 1], despite a paucity of data systematically examining outcome for periods greater than 3-6 months.