Abstract
Ever since Feinstein coined the term “comorbidity”, referring to the presence of any additional coexisting ailment in a patient with a particular index disease (J Chronic Dis 23:455–468, 1970), aspects of the phenomenon have been extensively studied. The aims of this chapter are: (1) to summarize the evidence of psychiatric comorbidity in anxiety disorders from adult population-based studies; (2) to present findings from the National Comorbidity Survey Replication (NCS-R); (3) to summarize evidence of psychiatric comorbidity in anxiety disorders from child and adolescent population-based samples; (4) to provide a summary of evidence on comorbidity from family and genetic studies; and (5) to examine patterns of comorbidity between anxiety disorders and medical conditions. Throughout each of these aims, implications of the comorbidity are explored, including whether these patterns reflect a need for redefining the disorders or rather an etiologic or even causal path.
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Abbreviations
- NCS-R:
-
National Comorbidity Survey Replication
- NCS:
-
National Comorbidity Survey
- ESEMeD:
-
European Study of Epidemiology of Mental Disorders
- NESARC:
-
National Epidemiologic Survey of Alcohol Related Conditions
- NEMESIS:
-
Netherlands Mental Health Survey and Incidence Study
- OHS:
-
Ontario Health Survey
- ECA:
-
Epidemiological Catchment Area
- ZCS:
-
Zurich Cohort Study
- WMHI:
-
World Mental Health Initiative
- PTSD:
-
Post-traumatic stress disorder
- GAD:
-
Generalized anxiety disorder
- OCD:
-
Obsessive compulsive disorder
- ADHD:
-
Attention-deficit/hyperactivity disorder
- TBI:
-
Traumatic brain injury
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Merikangas, K.R., Swanson, S.A. (2009). Comorbidity in Anxiety Disorders. In: Stein, M., Steckler, T. (eds) Behavioral Neurobiology of Anxiety and Its Treatment. Current Topics in Behavioral Neurosciences, vol 2. Springer, Berlin, Heidelberg. https://doi.org/10.1007/7854_2009_32
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