Sleep-related problems and use of hypnotics in inpatients of acute hospital wards

Minori Enomoto, Takako Tsutsui, Sadanori Higashino, Masaaki Otaga, Shigekazu Higuchi, Sayaka Aritake, Akiko Hida, Miyuki Tamura, Masato Matsuura, Yoshitaka Kaneita, Kiyohisa Takahashi, Kazuo Mishima*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


Objective: Although sleep disorders are highly prevalent among patients with physical disorders, only limited information is available about the actual status of sleep-related problems in inpatients of acute hospital wards. We conducted a multicenter cross-sectional observational survey investigating the prevalence of sleep disorders and use of hypnotic-sedative drugs among inpatients of acute wards in 44 general hospitals in Japan. Method: Questionnaire-, actigraph- and observation-based sleep evaluations were simultaneously performed in 557 adult inpatients [mean age 72.8±12.8 (S.D.) years] of acute wards during a one-month period in July 2007. Results: Of the 421 patients with data available, 22.3% had at least one of the following sleep disorders: sleep apnea syndrome, restless legs syndrome, periodic limb movement disorder and nocturnal behavior disorder. Similarly, 62.7% had insomnia, 6.9% had severe daytime sleepiness and 12.8% had other sleep-related symptoms. Only 13.8% were free of any sleep-related problem. Although 33.7% of insomnia patients were taking hypnotic-sedative drugs, 65.2% of them complained of residual insomnia symptoms. Conclusion: The findings obtained in this study have revealed the remarkably high prevalence of sleep-related problems experienced by inpatients of acute hospital wards in Japan. Proper diagnosis of sleep disorders should be made among patients with physical disorders.

Original languageEnglish
Pages (from-to)276-283
Number of pages8
JournalGeneral Hospital Psychiatry
Issue number3
Publication statusPublished - 2010 May
Externally publishedYes


  • Acute hospital wards
  • Hypnotic use
  • Insomnia
  • Physical illness
  • Sleep disorders

ASJC Scopus subject areas

  • Psychiatry and Mental health


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