Background The co-occurrence of anxiety disorders with other mental, addictive, and physical disorders has important implications for treatment and for prediction of clinical course and associated morbidity.Method Cross-sectional and prospective data on 20 291 individuals from the Epidemiologic Catchment Area (ECA) study were analysed to determine one-month, current disorders, one-year incidence, and one-year and lifetime prevalence of anxiety, mood, and addictive disorders, and to identify the onset and offset of disorders within the one-year prospective period.Results Nearly half (47.2%) of those meeting lifetime criteria for major depression also have met criteria for a comorbid anxiety disorder. The average age of onset of any lifetime anxiety disorder (16.4 years) and social phobia (11.6 years) among those with major depression was much younger than the onset age for major depression (23.2 years) and panic disorder.Conclusions Anxiety disorders, especially social and simple phobias, appear to have an early onset in adolescence with potentially severe consequences, predisposing those affected to greater vulnerability to major depression and addictive disorders.
A survey of the uses and attitudes of 146 mental health professionals, primarily psychiatrists and psychologists, in 42 countries (not including the United States) toward the 3rd edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-III) and its revision (DSM-III-R; American Psychiatric Association, 1980,1987) is reported. The results revealed wide-spread endorsement of the multiaxial system, theoretical neutrality, descriptive symptom criteria forming discrete categories, and the placement of personality disorders on a separate axis. We report that the DSM-III and DSM-III-R are more widely used around the world than the International Classification of Diseases for teaching, research, and clinical practice. Opinions about various dimensions of the DSM's usefulness and shortcomings are presented.
In preparing for the 10th revision of the International Classification of Diseases (ICD-10), the Division of Mental Health of the World Health Organization organized an international field trial to help evaluate draft clinical descriptions and diagnostic guidelines that were produced to facilitate use of the chapter dealing with mental and behavioral disorders. These clinical guidelines were prepared in equivalent versions in most of the world's widely spoken languages. The field trial aimed to obtain data that would help in assessing whether the classification fits the diagnoses made in different countries, whether it is easy to use, and whether psychiatrists after a short period of familiarization with the classification can reach agreement about their diagnoses and classification. The field trial was carried out at 112 clinical centers in 39 countries by 711 clinicians who conducted 15,302 individual assessments. The trial included joint clinical assessments of patients and case history exercises. The results of the joint assessment part of the trial are reported here. Most clinicians reported that the draft document was easy to use and that the classification provided a good fit for the vast majority of the clinical conditions encountered. While interrater reliability was satisfactory for most categories, some (for example, those dealing with personality disorders) were somewhat difficult to use, and reliability of assignment for those was lower. The trial demonstrated that the ICD-10 chapter dealing with mental and behavioral disorders is on the whole suitable for general use. It provided valuable indications about changes needed for subsequent versions and demonstrated the feasibility of large-scale international research on classification and diagnosis in psychiatry.
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