Epidemiological studies of insomnia in the general population have reported high
prevalence rates. However, few have applied diagnostic criteria from existing classification …

Objective: Primary insomnia and insomnia related to mental disorders are the two most
common DSM-IV insomnia diagnoses, but distinguishing between them is difficult in clinical …

The co-occurrence of insomnia and mental disorders constitutes the most prevalent
diagnosis pattern found in sleep disorder clinics. Yet, there remains a paucity of …

Lack of a systematic assessment of insomnia has led to large variations in its reported
prevalence in the general population. This study aims to provide new guidelines to assess …

Objective: The authors review the usefulness, reliability, and validity of recently proposed
subtypes ofprimary insomnia. DSM-III uses “primary insomnia” to indicate chronic insomnia …

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 …

BackgroundThe complex nature of insomnia and its relationship with organic and mental
disorders render diagnosis problematic for epidemiologists and physicians. MethodA …

This study was an epidemiological questionnaire survey of a representative sample of the
French population that included 12 778 individuals and in which adapted DSM‐IV criteria for …

BACKGROUND: Although the epidemiology of insomnia in the general population has
received considerable attention in the past 20years, few studies have investigated the …

Study Objectives: With the introduction of insomnia disorder in Diagnostic and Statistical
Manual of Mental Disorders, Fifth Edition (DSM-5), greater emphasis has been placed on …