Year: 1978 Source: Journal of Nervous & Mental Disease, v.166, no.12, (1978), p.846-850 SIEC No: 19850984

44% of 112 patients with anxiety neurosis reported episodes of depression during the course of their illness compared with only 7% of surgical controls. Although the majority developed in response to environmental circumstances & were of brief duration, they commonly led to psychiatric treatment or hospitalization in this group of patients. Patients who developed this complication were shown to have a more chronic & severe underlying illness.