title: Factors that affect sleep quality: perceptions made by patients in the intensive care unit after thoracic surgery.
abstract: OBJECTIVE
  This study identifies factors affecting sleep patterns among thoracic surgery patients in the intensive care unit (ICU) and compares the perceptions of sleep-disturbing factors between nurses and patients.
  
  
  METHODS
  One hundred and fifty-two patients and 40 nurses were surveyed using the Pittsburgh Sleep Quality Index (PSQI) and self-designed questionnaires (for patients and nurses). All statistical analyses were carried out by SPSS, and the following statistical methods were used to evaluate the data: chi-squared test and logistic regression.
  
  
  RESULTS
  Of 152 patients, 46.1 % reported poor sleep quality during their hospitalization; their PSQI total score was 6.95 ± 3.713. Of these, 69.1 % indicated that their sleep quality was poorer than before; 50.0 % of them changed their sleep patterns. Significant discrepancies exist between nurses and patients in the perceptions of sleep-disturbing factors of patients.
  
  
  CONCLUSIONS
  Thoracic surgical patients' perceptions of their sleep in the ICU indicate poor sleep quality, which is decided by a variety of disturbing factors. Perceptions of these factors varied greatly between surveyed patients and nurses.
authors: Tianjin Lung Cancer Center, Department of Thoracic Surgery, Tianjin Medical University Cancer Institute and Hospital, Tianjin, 300060, People's Republic of China. raymd728@yahoo.com.cn
authors: Lei
authors: L
authors: Zhang
authors: Yong Sheng
authors: YS
authors: Sha
authors: Qing Qing
authors: QQ
authors: Kong
authors: Jennifer Ai-Lian
authors: JA
authors: Woo
authors: Adam R
authors: AR
authors: Miller
authors: Hong Wei
authors: HW
authors: Li
authors: Li Xin
authors: LX
authors: Zhou
authors: Yi
authors: Y
authors: Zhou
authors: Chang Li
authors: CL
authors: Wang
mesh_terms: D000328:Adult; D000368:Aged; D003625:Data Collection; D005260:Female; D006760:Hospitalization; D006801:Humans; D007297:Inpatients; D007362:Intensive Care Units; D008297:Male; D008875:Middle Aged; D009726:Nurses; D010465:Perception; D012890:Sleep / Q000502:physiology*; D012893:Sleep Wake Disorders / Q000453:epidemiology* / Q000451:nursing / Q000523:psychology; D011795:Surveys and Questionnaires; D019616:Thoracic Surgical Procedures