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OBJECTIVE To identify the cross-national prevalence of psychotic symptoms in the general population and to analyze their impact on health status. METHOD The sample was composed of 256,445 subjects (55.9% women), from nationally representative samples of 52 countries worldwide participating in the World Health Organization's World Health Survey.(More)
BACKGROUND Subthreshold depressive disorders (minor and subthrehold depression) have been defined in a wide range of forms, varying on the number of symptoms and duration required. Disability associated with these conditions has also been reported. Our aim was to review the different definitions and to determine factors associated with these conditions in(More)
BACKGROUND Nosological boundaries for depressive disorders as well as the prevalence and impact of 'subsyndromal' depression remain unclear. AIMS To examine the impact of subsyndromal depressive disorders on health status and to assess if depressive disorders lie on a continuum of severity. METHOD The sample was composed of randomly selected respondents(More)
OBJECTIVE To analyze, in a general population sample, clustering of delusional and hallucinatory experiences in relation to environmental exposures and clinical parameters. METHOD General population-based household surveys of randomly selected adults between 18 and 65 years of age were carried out. SETTING 52 countries participating in the World Health(More)
OBJECTIVE To evaluate the efficacy of different types of behavioral treatments for geriatric anxiety (cognitive behavior therapy [CBT] alone, CBT with relaxation training [RT], and RT alone). METHOD The authors compared effect sizes from 19 trials. Analyses were based on uncontrolled outcomes (comparing posttreatment and pretreatment scores) and effects(More)
OBJECTIVE To develop and test a modular psychotherapy protocol in older primary care patients with anxiety disorders. DESIGN Randomized, controlled pilot study. SETTING University-based geriatric medicine clinics. PARTICIPANTS Thirty-one elderly primary care patients with generalized anxiety disorder or anxiety disorder not otherwise specified. (More)
OBJECTIVE To investigate differences between young children, adolescents and adults with chronic fatigue syndrome/myalgic encephalomyelitis (CFS/ME). STUDY DESIGN Comparison of clinical cohorts from 8 paediatric and 27 adult CFS/ME services in the UK and a paediatric randomised controlled trial from the Netherlands. Outcome measures include: fatigue (the(More)
BACKGROUND The impact of different levels of depression severity on quality of life (QoL) is not well studied, particularly regarding ICD-10 criteria. The ICD classification of depressive episodes in three levels of severity is also controversial and the less severe category, mild, has been considered as unnecessary and not clearly distinguishable from(More)
This study explored whether physical health problems are related to psychotic symptoms independently of a mental disorder diagnosis. A total of 224,254 subjects recruited for the World Health Organization World Health Survey were subdivided into those with both a lifetime diagnosis of psychosis and at least one psychotic symptom in the 12 months prior to(More)