Author
Katharina Voigt
Other affiliations: University of Marburg
Bio: Katharina Voigt is an academic researcher from University of Hamburg. The author has contributed to research in topics: Somatic symptom disorder & Anxiety. The author has an hindex of 8, co-authored 14 publications receiving 423 citations. Previous affiliations of Katharina Voigt include University of Marburg.
Papers
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TL;DR: The SSD-12 is the first self-report questionnaire that operationalizes the new psychological characteristics of Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition somatic symptom disorder.
Abstract: ObjectiveTo develop and validate a new self-report questionnaire for the assessment of the psychological features of Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition somatic symptom disorder.MethodsThe Somatic Symptom Disorder–B Criteria Scale (SSD-12) was developed in se
132 citations
TL;DR: Comparing the validity and clinical utility of current and several new diagnostic proposals of those somatoform disorders that focus on medically unexplained somatic symptoms suggests that, of all current and new diagnostic suggestions, complex somatic symptom disorder and the CISSD definition appear to have advantages regarding validity andclinical utility.
99 citations
TL;DR: A high rate of previously unrecognized severe symptoms of depression and anxiety in patients with AIH is identified for the first time, suggesting the factors associated with these symptoms may in part be amenable to targeted counselling and adequate treatment of the disease.
83 citations
TL;DR: Psychological symptoms enhance predictive validity and clinical utility of DSM-5 Somatic Symptom Disorder compared to DSM-IV somatoform disorders and identifies more psychologically impaired patients than its DSM- IV precursor.
68 citations
TL;DR: The present study supports the inclusion of psychological and behavioral characteristics in the DSM-5 diagnostic criteria for somatoform disorders and makes suggestions for a slight modification of criterion B to enhance construct validity of the Somatic Symptom Disorder.
39 citations
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TL;DR: The ICHD identifies and categorizes more than a hundred different kinds of headache in a logical, hierarchal system and has provided explicit diagnostic criteria for all of the headache disorders listed.
Abstract: A set of related medical disorders that lack a proper classification system and diagnostic criteria is like a society without laws. The result is incoherence at best, chaos at worst. For this reason, the International Classification of Headache Disorders (ICHD) is arguably the single most important breakthrough in headache medicine over the last 50 years. The ICHD identifies and categorizes more than a hundred different kinds of headache in a logical, hierarchal system. Even more important, it has provided explicit diagnostic criteria for all of the headache disorders listed. The ICHD quickly became universally accepted, and criticism of the classification has been minor relative to that directed at other disease classification systems. Over the 20 years following publication of the first edition of the ICHD, headache research has rapidly accelerated despite sparse allocation of resources to that effort. In summary, the ICHD has attained widespread acceptance at the international level and has substantially facilitated both clinical research and clinical care in the field of headache medicine.
1,171 citations
TL;DR: Autoimmune hepatitis (AIH) was the first liver disease for which an effective therapeutic intervention, corticosteroid treatment, was convincingly demonstrated in controlled clinical trials, however, 50 years later AIH still remains a major diagnostic and therapeutic challenge.
799 citations
08 Nov 2011
TL;DR: ThePHQ-9, GAD-7 and PHQ-15 are brief well-validated measures for detecting and monitoring depression, anxiety and somatization.
Abstract: BACKGROUND
Depression, anxiety and somatization are the most common mental disorders in primary care as well as medical specialty populations; each is present in at least 5-10% of patients and frequently comorbid with one another. An efficient means for measuring and monitoring all three conditions would be desirable.
METHODS
Evidence regarding the psychometric and pragmatic characteristics of the Patient Health Questionnaire (PHQ)-9 depression, generalized anxiety disorder (GAD)-7 anxiety and PHQ-15 somatic symptom scales are synthesized from two sources: (1) four multisite cross-sectional studies (three conducted in primary care and one in obstetric-gynecology practices) comprising 9740 patients, and (2) key studies from the literature that have studied these scales.
RESULTS
The PHQ-9 and its abbreviated eight-item (PHQ-8) and two-item (PHQ-2) versions have good sensitivity and specificity for detecting depressive disorders. Likewise, the GAD-7 and its abbreviated two-item (GAD-2) version have good operating characteristics for detecting generalized anxiety, panic, social anxiety and post-traumatic stress disorder. The optimal cutpoint is > or = 10 on the parent scales (PHQ-9 and GAD-7) and > or = 3 on the ultra-brief versions (PHQ-2 and GAD-2). The PHQ-15 is equal or superior to other brief measures for assessing somatic symptoms and screening for somatoform disorders. Cutpoints of 5, 10 and 15 represent mild, moderate and severe symptom levels on all three scales. Sensitivity to change is well-established for the PHQ-9 and emerging albeit not yet definitive for the GAD-7 and PHQ-15.
CONCLUSIONS
The PHQ-9, GAD-7 and PHQ-15 are brief well-validated measures for detecting and monitoring depression, anxiety and somatization.
607 citations
TL;DR: This practice guideline/guidance constitutes an update of the guidelines on AIH published in 2010 by the American Association for the Study of Liver Diseases (AASLD) and updates the epidemiology, diagnosis, management, and outcomes of AIH in adults and children.
402 citations