Maurice Moyses Ohayon

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Epidemiologists have published more than 50 studies of insomnia based on data collected in various representative community-dwelling samples or populations. These surveys provide estimates of the prevalence of insomnia according to four definitions: insomnia symptoms, insomnia symptoms with daytime consequences, sleep dissatisfaction and insomnia diagnoses.(More)
OBJECTIVES The purposes of this study were to identify age-related changes in objectively recorded sleep patterns across the human life span in healthy individuals and to clarify whether sleep latency and percentages of stage 1, stage 2, and rapid eye movement (REM) sleep significantly change with age. DESIGN Review of literature of articles published(More)
BACKGROUND Periodic limb movement disorder (PLMD) and restless legs syndrome (RLS) are two sleep disorders characterized by abnormal leg movements and are responsible for deterioration in sleep quality. However, the prevalence of these disorders is not well known in the general population. This study aims to document the prevalence of RLS and PLMD in the(More)
OBJECTIVE Sleep bruxism can have a significant effect on the patient's quality of life. It may also be associated with a number of disorders. However, little is known about the epidemiology of sleep bruxism and its risk factors in the general population. DESIGN Cross-sectional telephone survey using the Sleep-EVAL knowledge based system. SETTINGS(More)
BACKGROUND The use of psychotropic medications and its association with sleep and psychiatric and physical illnesses were studied in the general population. METHOD A cross-sectional telephone survey was carried out using the Sleep-EVAL knowledge-base system. A representative sample of the noninstitutionalized general populations of France, Germany, Italy,(More)
BACKGROUND Insomnia is frequent in the general population and is often related to a psychiatric illness. However, little is known about how the chronicity of insomnia affects this relation and how often subjects with chronic insomnia have antecedents of psychiatric disorders. METHODS A total of 14,915 subjects aged from 15 to 100 years representative of(More)
OBJECTIVE To determine the prevalence of narcolepsy in the general population of five European countries (target population 205,890,882 inhabitants). METHODS Overall, 18,980 randomly selected subjects were interviewed (participation rate 80.4%). These subjects were representative of the general population of the UK, Germany, Italy, Portugal, and Spain.(More)
Hallucinations are perceptual phenomena involved in many fields of pathology. Although clinically widely explored, studies in the general population of these phenomena are scant. This issue was investigated using representative samples of the non-institutionalized general population of the United Kingdom, Germany and Italy aged 15 years or over (N=13,057).(More)
INTRODUCTION In Western countries, insomnia is associated with daytime impaired functioning, as well as physical and psychiatric illnesses. However, little information exists on insomnia in Asian countries. This study investigates the prevalence and correlates of insomnia in the general population of South Korea. METHODS A representative sample of the(More)
BACKGROUND Arousal parasomnias (night terrors, sleepwalking, and confusional arousals) have seldom been investigated in the adult general population. Clinical studies of parasomnias, however, show that these disorders may be indicators of underlying mental disorders and may have serious consequences. METHOD A representative sample of the United Kingdom(More)