The prevalence and the clinical characteristics of sleep-related eating disorders (SRED)

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Sleep-related eating disorder (SRED) is a behavioral disorder in which recurrent episodes of eating and drinking occur during the main sleep episode. The Munich Parasomnia Screening (MUPS) was designed as a screening instrument to assess the occurrence and frequency of nocturnal behaviors and events. We developed a Japanese version of the MUPS in order to assess the lifetime prevalence and current frequency of SRED. The anonymous questionnaire survey revealed that lifetime prevalence of SRED in the subject population was 5.5%. From the study investigating the consecutive patients with SRED, there are different clinical features between primary and secondary SRED.