[Skip to Content]
Access to paid content on this site is currently suspended due to excessive activity being detected from your IP address 54.87.121.0. Please contact the publisher to request reinstatement.
[Skip to Content Landing]
Article
November 1993

Diagnostic Validity in Genetics Research on Generalized Anxiety Disorder-Reply

Author Affiliations

Richmond, Va

Arch Gen Psychiatry. 1993;50(11):916-917. doi:10.1001/archpsyc.1993.01820230086009
Abstract

In Reply.—  I appreciate the opportunity to address the diagnostic issues raised by Swinson and Cox about our twin study. 1 Our criteria for GAD were based on the July 1, 1985, version of the Structured Clinical Interview for DSM-III-R (SCID).2 At that time in the revision of DSM-III, GAD criteria had not yet taken their final form. As a result, the SCID questions on GAD reflected, in important ways, DSM-III rather than DSM-III-R criteria. Our interview required a period in which the individual reported being "anxious, nervous, or worried more days than not." Unlike the SCID, which required a minimum duration of 6 months, we used a minimum duration of 1 month or greater but subsequently asked for the longest duration of an episode so that we could reconstruct the minimum 6-month duration. The interview did not assess whether these anxious or nervous feelings were related to two or more

First Page Preview View Large
First page PDF preview
First page PDF preview
×