DSM-IV psychiatric comorbidity according to symptoms of insomnia: a nationwide sample of Korean adults
Social Psychiatry and Psychiatric Epidemiology, 04/25/2012
Kim BS et al. – Most psychiatric disorders were significantly associated with each insomnia symptom in different ways. Differences in sociodemographic and clinical correlates between the four insomnia symptoms implied the heterogeneous characteristics of insomnia as defined by the current diagnostic criteria.