title: Better sleep quality in chronic haemodialyzed patients is associated with morning-shift dialysis: a cross-sectional observational study.
abstract: OBJECTIVE
  The aim of the study was to investigate the association between dialysis shift and subjective sleep quality in chronic haemodialyzed patients.
  
  
  METHODS
  A cross-sectional observational study.
  
  
  METHODS
  A total of 206 haemodialyzed patients aged from 22 to 71 participated in this study. Participants were grouped into the morning-shift and other-shifts groups. Subjective sleep quality was measured using the Pittsburgh Sleep Quality Index (PSQI). All participants also completed the Beck Depression Inventory (BDI) and Beck Anxiety Inventory (BAI).
  
  
  RESULTS
  Dialysis shift significantly predicted the PSQI score with patients receiving morning-shift haemodialysis having better sleep quality (β=0.15, p=0.01). Other independent predictors of the PSQI score included depression (β=0.42, p<0.001), anxiety (β=0.38, p<0.001), and tea drinking (β=0.20, p0.001). Together these factors explained 48.2% of the variance in the PSQI score.
  
  
  CONCLUSIONS
  Morning dialysis shift was significantly associated with better subjective sleep quality in chronic haemodialyzed patients after adjusting for other confounders.
authors.affiliation: Department of Nursing, Cardinal Tien College of Healthcare and Management, New Taipei City, Taiwan.
authors.forename: Mei-Yeh
authors.initials: MY
authors.lastname: Wang
authors.forename: Shu-Fen
authors.initials: SF
authors.lastname: Chan
authors.forename: Lu-I
authors.initials: LI
authors.lastname: Chang
authors.forename: Tso-Hsiao
authors.initials: TH
authors.lastname: Chen
authors.forename: Pei-Shan
authors.initials: PS
authors.lastname: Tsai
mesh_terms: D000328:Adult; D000368:Aged; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D006435:Renal Dialysis; D012890:Sleep; D012893:Sleep Wake Disorders / Q000209:etiology*; D055815:Young Adult
keywords: Dialysis shift; Haemodialysis; Sleep quality