Insomnia is frequent in schizophrenia and associated with night eating and obesity
- PMID: 21856129
- PMCID: PMC5581545
- DOI: 10.1016/j.schres.2011.07.030
Insomnia is frequent in schizophrenia and associated with night eating and obesity
Abstract
Background: Sleep difficulties are common in schizophrenia, however these complaints are often overshadowed by more prominent clinical concerns. The point prevalence of insomnia in this population is not well documented. Poor sleep is associated with lower quality of life, impaired cognition, and weight gain.
Objectives: The objectives of this study are to evaluate the prevalence of insomnia in schizophrenia and to explore the relationship of sleep to cognition, quality of life, and clinical variables.
Method: 175 outpatients with schizophrenia or schizoaffective disorder were assessed for insomnia. Participants were evaluated for sleep difficulties, sleep patterns, body mass index, and psychiatric symptoms. Participants were also administered a brief cognitive assessment of processing speed.
Results: 44% of the sample currently met the criteria for clinical insomnia. An additional 4% were successfully treated with medications. Insomnia was associated with depression and was an independent predictor of lower quality of life. Insomnia was also associated with high rates of night eating and patients with severe insomnia were significantly more obese. The type of antipsychotic did not account for the difference in body mass index. No difference between group means in cognition was detected, although those with severe insomnia did perform least well.
Conclusion: Clinical insomnia in outpatients with schizophrenia is highly prevalent and has a negative impact on quality of life and psychiatric symptoms. This study offers additional support to the association between poor sleep and higher weight, as well as indicating a potential link to night eating in this population. Assessment for sleep difficulties should be a routine part of clinical care.
Copyright © 2011 Elsevier B.V. All rights reserved.
Conflict of interest statement
The authors report no conflicts of interest.
Similar articles
-
Prevalence of night eating in obese individuals with schizophrenia and schizoaffective disorder.Compr Psychiatry. 2013 Apr;54(3):276-81. doi: 10.1016/j.comppsych.2012.07.014. Epub 2012 Sep 5. Compr Psychiatry. 2013. PMID: 22959340 Free PMC article.
-
Prevalence and correlates of insomnia and its impact on quality of life in Chinese schizophrenia patients.Sleep. 2009 Jan;32(1):105-9. Sleep. 2009. PMID: 19189785 Free PMC article.
-
[The Prevalence of Night Eating Syndrome among Outpatient Overweight or Obese Individuals with Serious Mental Illness].Turk Psikiyatri Derg. 2015 Winter;26(4):242-8. Turk Psikiyatri Derg. 2015. PMID: 26731021 Turkish.
-
The impact of eszopiclone on sleep and cognition in patients with schizophrenia and insomnia: a double-blind, randomized, placebo-controlled trial.Schizophr Res. 2014 Dec;160(1-3):180-5. doi: 10.1016/j.schres.2014.10.002. Epub 2014 Oct 29. Schizophr Res. 2014. PMID: 25454802 Free PMC article. Clinical Trial.
-
Suicidal Ideation.2022 May 18. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2022 Jan–. 2022 May 18. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2022 Jan–. PMID: 33351435 Free Books & Documents.
Cited by
-
Quality of life in patients with schizophrenia: A 2-year cohort study in primary mental health care in rural China.Front Public Health. 2022 Sep 7;10:983733. doi: 10.3389/fpubh.2022.983733. eCollection 2022. Front Public Health. 2022. PMID: 36159297 Free PMC article.
-
Sex differences in prevalence and clinical correlates of insomnia in Chinese patients with chronic schizophrenia.Eur Arch Psychiatry Clin Neurosci. 2022 Aug 16. doi: 10.1007/s00406-022-01473-x. Online ahead of print. Eur Arch Psychiatry Clin Neurosci. 2022. PMID: 35972555
-
Study protocol for a pilot high-intensity interval training intervention in inpatient mental health settings: a two-part study using a randomised controlled trial and naturalistic study design.Pilot Feasibility Stud. 2021 Nov 8;7(1):198. doi: 10.1186/s40814-021-00937-6. Pilot Feasibility Stud. 2021. PMID: 34749822 Free PMC article.
-
Understanding factors relevant to poor sleep and coping methods in people with schizophrenia.BMC Psychiatry. 2021 Jul 26;21(1):373. doi: 10.1186/s12888-021-03384-y. BMC Psychiatry. 2021. PMID: 34311714 Free PMC article.
-
Assessing the psychometric properties of the PROMIS sleep measures in persons with psychosis.Sleep. 2021 Nov 12;44(11):zsab140. doi: 10.1093/sleep/zsab140. Sleep. 2021. PMID: 34086964 Free PMC article.
Publication types
MeSH terms
Grant support
LinkOut - more resources
Full Text Sources
Medical
Miscellaneous
