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Quality of life, which is impaired in patients with chronic spontaneous urticaria (CSU), is influenced by comorbid mental disorders. The aim of this study was to assess the prevalence and spectrum of mental disorders and to determine levels of emotional distress in patients with CSU. One hundred patients with CSU were investigated for mental disorders (by specialized diagnostic interviews and psychometric instruments), levels of emotional distress (by the Global Severity Index of the Symptom Check List; SCL-90R GSI) and underlying causes of their urticaria (by dermatological assessment). Forty-eight percent of patients with CSU were diagnosed with one or more psychosomatic disorders; most common were anxiety disorders (especially phobias), followed by depressive and somatoform disorders. The use of psychometric instruments confirmed these findings. Levels of emotional distress were significantly higher and more commonly increased in patients with CSU with mental disorders. In conclusion, patients with CSU frequently experience anxiety, depression, and somatoform disorders, and these disorders are linked to increased emotional distress. These findings call for screening of patients with CSU for mental disorders in routine clinical practice as well as for controlled clinical trials.

Background: Chronic urticaria (CU), one of the most common skin disorders, is characterized by spontaneous recurrent bouts of weals and pruritus and associated with severely impaired quality of life (QoL)., Objectives: To determine what aspects of life quality are affected and to characterize the factors that impact on QoL in CU patients., Subjects and Methods: This interdisciplinary interview/questionnaire-based study included 100 patients admitted to a University Hospital Dermatology Department for the identification of underlying causes of CU; 96 healthy subjects matched for age and sex were used as controls. QoL was assessed using Skindex-29, a validated instrument to measure the effects of skin disease on overall QoL (composite score) and three defined QoL aspects (emotions, symptoms, functioning)., Results: CU patients exhibited markedly reduced overall QoL compared with healthy control subjects. CU had distinct effects on the three QoL aspects assessed (functioning = emotions > symptoms). The age or sex of patients, the absence or presence of angio-oedemas, and the duration or cause of CU did not significantly influence QoL impairment. Interestingly, psychiatric comorbidity (depression, anxiety, somatoform disorders) was associated with a more pronounced reduction of QoL compared with CU patients without a psychiatric diagnosis and the severity of psychiatric disease was found to correlate with QoL impairment., Conclusions: Our data confirm that overall QoL is markedly reduced in CU patients. Social functioning and emotions were found to be the areas of QoL most affected in CU patients. Psychiatric comorbidity significantly increased QoL impairment, whereas QoL in CU patients was not significantly affected by age or sex, the absence or presence of angio-oedema, or the course or cause of CU.