Factors affecting sleep quality of patients in intensive care unit

Shailesh Bihari, R. Doug McEvoy, Elisha Matheson, Susan Kim, Richard J. Woodman, Andrew D. Bersten

Research output: Contribution to journalArticle

69 Citations (Scopus)

Abstract

Introduction: Sleep disturbance is a frequently overlooked complication of intensive care unit (ICU) stay. Aim: To evaluate sleep quality among patients admitted to ICU and investigate environmental and non-environmental factors that affect sleep quality in ICU. Methods: Over a 22-month period, we consecutively recruited patients who spent ≥ 2 nights post-endotracheal extubation in ICU and who were orientated to time, place, and person on the day of discharge. Self-reported sleep quality, according to a modified Freedman questionnaire, which provided data on self-reported ICU sleep quality in ICU and environmental factors affecting sleep quality in the ICU, were collected. We also investigated non-environmental factors, such as severity of illness, ICU interventions, and medications that can affect sleep quality. Results: Fifty males and 50 females were recruited with a mean (± SD) age of 65.1 ± 15.2 years. APACHE II score at admission to ICU was 18.1 ± 7.5 with duration of stay 6.7 ± 6.5days. Self-reported sleep quality score at home (1 = worst; 10 = best) was 7.0 ± 2.2; this decreased to 4.0 ± 1.7 during their stay in ICU (p < 0.001). In multivariate analysis with APACHE III as severity of illness (R2 = 0.25), factors [exp(b)(95% CI), p value] which significantly affected sleep in ICU were sex [0.37(0.19-0.72), p < 0.01], age and sex interaction [1.02(1.01-1.03), p < 0.01], bedside phone [0.92(0.87-0.97), p < 0.01], prior quality of sleep at home [1.30(1.05-1.62), p = 0.02], and use of steroids [0.82(0.69-0.98), p = 0.03] during the stay in ICU. Conclusion: Reduced sleep quality is a common problem in ICU with a multifactorial etiology.

Original languageEnglish
Pages (from-to)301-307
Number of pages7
JournalJournal of Clinical Sleep Medicine
Volume8
Issue number3
DOIs
Publication statusPublished - 15 Jun 2012

Keywords

  • Factors affecting sleep
  • Intensive care unit
  • Sleep quality
  • Sleep questionnaire

ASJC Scopus subject areas

  • Pulmonary and Respiratory Medicine
  • Neurology
  • Clinical Neurology

Cite this

Bihari, S., Doug McEvoy, R., Matheson, E., Kim, S., Woodman, R. J., & Bersten, A. D. (2012). Factors affecting sleep quality of patients in intensive care unit. Journal of Clinical Sleep Medicine, 8(3), 301-307. https://doi.org/10.5664/jcsm.1920