title: Sleep problems among clinically depressed adults in China.
abstract: BACKGROUND
  The aim of the study was to explore which variables predict poor sleep among clinically depressed Chinese adults.
  
  
  METHODS
  In total, 100 participants were recruited from Shanghai Mental Health Centre. The dependent variables were number of hours spent sleeping as well as the quality of sleep and number of times the participants woke during the night. The independent variables were gender, age, length of depression and severity of depression. The use of antipsychotic medication was controlled for in all analyses.
  
  
  RESULTS
  The results demonstrated that depression severity was the most important predictor of sleep quality and night waking. Gender and age were also found to be predictors of sleep problems.
  
  
  CONCLUSIONS
  The findings demonstrated that depressed Chinese patients experienced similar relationships between sleep disturbance and depression to Westerners. Future studies should include other measures of sleep quality as well as variables consistently found to be associated with both depression and sleep difficulty, such as the use of addictive substances and psychosocial factors.
authors.affiliation: Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine , Shanghai , China and.
authors.forename: Sai
authors.initials: S
authors.lastname: Zuo
authors.forename: Marita P
authors.initials: MP
authors.lastname: McCabe
authors.forename: David
authors.initials: D
authors.lastname: Mellor
authors.forename: Yifeng
authors.initials: Y
authors.lastname: Xu
mesh_terms: D000328:Adult; D002681:China; D003865:Major Depressive Disorder / Q000453:epidemiology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012044:Regression Analysis; D012893:Sleep Wake Disorders / Q000453:epidemiology*; D055815:Young Adult
keywords: Chinese; Depression; sleep disturbance