Insomnia is associated with quality of life impairment in medical-surgical intensive care unit survivors

Elizabeth C. Parsons, Catherine L. Hough, Michael V. Vitiello, Douglas Zatzick, Dimitry S. Davydow

Research output: Contribution to journalArticlepeer-review

22 Scopus citations


Objectives: To examine the prevalence of insomnia and its relationship to health-related quality of life (HRQOL) post-intensive care unit (ICU). Background: The burden of post-ICU insomnia is unknown. Methods: This cross-sectional study examined data from 120 patients with an ICU stay >24h. Pre-hospital health was assessed in-hospital. Insomnia, HRQOL and post-ICU psychiatric symptoms were assessed at 12 months post-ICU. Results: Over one-quarter (28%) of subjects met insomnia criteria at 12 months post-ICU. Post-ICU insomnia was independently associated with worse mental HRQOL (P<0.01), as well as worse scores on the HRQOL sub-domains of bodily pain (P<0.001), vitality (P<0.05) and physical function (P<0.05). However, these associations were no longer significant after adjusting for post-ICU psychiatric symptoms (P=0.33). Conclusions: Insomnia is common among ICU survivors. Post-ICU insomnia is significantly associated with mental HRQOL and could identify ICU survivors who may benefit from further psychiatric evaluation.

Original languageEnglish (US)
Pages (from-to)89-94
Number of pages6
JournalHeart and Lung
Issue number2
StatePublished - Mar 1 2015
Externally publishedYes


  • Critical care
  • Depression
  • Insomnia
  • Intensive care
  • Outcome assessment
  • Post-traumatic stress disorder

ASJC Scopus subject areas

  • Pulmonary and Respiratory Medicine
  • Critical Care and Intensive Care Medicine
  • Cardiology and Cardiovascular Medicine


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