The Structure of Genetic and Environmental Risk Factors for Anxiety Disorders in Men and Women

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Abstract
Comorbidity among the anxiety disorders has proved to be the rule rather than the exception,1-3 such that it is unlikely for an individual to experience a single anxiety disorder in isolation.4 The etiology of comorbidity can be loosely divided into origins of causation (disorder A causes disorder B) or shared risk factors (both disorders are etiologically related to the same underlying causes).5 It is the latter that this study seeks to elucidate regarding the underlying risk factors that increase comorbidity among the anxiety disorders.