The Hierarchical Taxonomy of Psychopathology (HiTOP) is a quantitative nosological
system that addresses shortcomings of traditional mental disorder diagnoses, including …

The natural history of a disease classifies into five stages: underlying, susceptible,
subclinical, clinical, and recovery/disability/death. Corresponding preventive health …

Objective To study the prevalence and clinical characteristics of Somatic Symptom Disorder
(SSD), Bodily Distress Syndrome (BDS) and fibromyalgia syndrome (FMS) and their overlap …

Objective The numerous risk factors for fibromyalgia reflect its heterogeneous nature. This
study assessed whether the predictors of fibromyalgia onset vary according to number of …

The irritation scale is a widely used and reliable self-report scale for measuring cognitive
and emotional strain related to the work environment. It extends existing measures by …

Background Long-term stress causing altered hypothalamic–pituitary–adrenal (HPA) axis
dynamics with cortisol dysfunction may be involved in the pathophysiology of functional …

Abstract Objective The Danish Study of Functional Disorders (DanFunD) approaches
functional somatic disorders (FSD) with three delimitations: Five functional somatic …

Several psychological factors have been proposed to be associated with functional somatic
disorders (FSD). However, large population-based studies investigating the importance of …

Objective Self-reported symptom questionnaires are often used for identifying individuals
with functional somatic disorders (FSD) in epidemiological research. Studies on their validity …

Background Recurrent and impairing functional somatic syndromes (FSS) are common in
adolescents. Despite a high need for care, empirically supported treatments are lacking for …