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Modern epidemiology of anxiety: results of the Zurich cohort study

โœ Scribed by Jules Angst

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
146 KB
Volume
14
Category
Article
ISSN
0885-6222

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โœฆ Synopsis

The Zurich cohort study investigated a general population sample of 591 males and females, enriched by risk cases, through ยฎve interviews carried out between the ages of 20 and 35. The total prevalence rate for the anxiety spectrum (consisting of panic, general anxiety disorders (GAD) and recurrent brief anxiety states (RBA)) was 22 per cent. Panic and RBA were highly associated (odds ratio12 . 3). Complex panic syndromes ( panic GAD, panic RBA) were shown to be much more severe than pure panic in terms of impairment, treatment and suicide attempt rates. Pure panic, DSM-III GAD and RBA showed comparable validity. For the deยฎnition of GAD, a duration of two or four weeks is probably preferable to the 6-months currently required by DSM-IV and ICD-10. The marked longitudinal associations and diagnostic changes between the three anxiety states support the hypothesis of an anxiety spectrum.

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