Tevfik Bedirhan Ustun

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OBJECTIVE Despite growing interest in adult attention deficit hyperactivity disorder (ADHD), little is known about its prevalence or correlates. METHOD A screen for adult ADHD was included in a probability subsample (N=3,199) of 18-44-year-old respondents in the National Comorbidity Survey Replication, a nationally representative household survey that(More)
BACKGROUND In recent years the 12-item General Health Questionnaire (GHQ-12) has been extensively used as a short screening instrument, producing results that are comparable to longer versions of the GHQ. METHODS The validity of the GHQ-12 was compared with the GHQ-28 in a World Health organization study of psychological disorders in general health care.(More)
BACKGROUND A self-report screening scale of adult attention-deficit/hyperactivity disorder (ADHD), the World Health Organization (WHO) Adult ADHD Self-Report Scale (ASRS) was developed in conjunction with revision of the WHO Composite International Diagnostic Interview (CIDI). The current report presents data on concordance of the ASRS and of a short-form(More)
CONTEXT Little is known about the extent or severity of untreated mental disorders, especially in less-developed countries. OBJECTIVE To estimate prevalence, severity, and treatment of Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) mental disorders in 14 countries (6 less developed, 8 developed) in the World Health(More)
This report describes the World Health Organization Health and Work Performance Questionnaire (HPQ), a self-report instrument designed to estimate the workplace costs of health problems in terms of reduced job performance, sickness absence, and work-related accidents-injuries. Calibration data are presented on the relationship between individual-level HPQ(More)
Absence of a common diagnostic interview has hampered cross-national syntheses of epidemiological evidence on major depressive episodes (MDE). Community epidemiological surveys using the World Health Organization Composite International Diagnostic Interview administered face-to-face were carried out in 10 countries in North America (Canada and the US),(More)
OBJECTIVE To examine the impact of common mental illness on functional disability and the cross-cultural consistency of this relationship while controlling for physical illness. A secondary objective was to determine the level of disability associated with specific psychiatric disorders. DESIGN A cross-sectional sample selected by two-stage sampling. (More)
OBJECTIVE The purpose of this study was to examine the phenomenon of somatization in different cultures by determining its frequency and correlates in primary care settings in 14 countries. METHOD Consecutive primary care patients (N = 25,916) were screened with the 12-item General Health questionnaire, and a stratified sample (N = 5,438) was interviewed(More)
BACKGROUND The National Comorbidity Survey is a nationally representative survey of the prevalences and correlates of DSM-III-R disorders in the US household population. METHODS Retrospective age-at-onset reports were used to study predictive relationships between lifetime panic and depression. RESULTS Strong associations were found between the lifetime(More)
We assessed the replicability of reliability and validity of a brief self-report disability scale, adapted from the Medical Outcomes Survey (short form), in a 15-center, cross-national, multilingual study of psychological illness among primary care patients (n = 5438). Across all 15 centers in the World Health Organization Collaborative Study of(More)