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 …

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

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 …

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 …

The morbidity of sleep problems has been well documented; however, they are frequently
associated with and are symptomatic of several psychiatric disorders. It is unclear how much …

Objectives Insomnia is a public health problem with many repercussions. It affects a
significant proportion of the general population worldwide, but the estimated prevalences in …

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

Over the last years, a large body of evidence has accumulated showing that complaints of
disordered sleep are quite prevalent in the community. Insomnia is by far the most common …

Epidemiologic studies of sleep disturbances and mood disorders that may provide more
valid estimates of associations between these two conditons than clinical samples due to …

Method: Data of 2,619 individuals from the Netherlands Study of Depression and Anxiety
(NESDA) were analyzed. Psychopathology was classified as no, current, or remitted DSM-IV …