title: Association between sleep quality and postpartum depression.
abstract: BACKGROUND
  The objective of this study was an investigation of the association between depression and sleep quality.
  
  
  METHODS
  This cross-sectional study was performed on 360 delivered women that referred to thirty health-care centers in Ardabil, Iran. The Standard Pittsburgh Sleep Quality Index questionnaire was used to the investigation of sleep quality. We used the Edinburgh Postnatal Depression Questionnaire to assess postpartum depression. Logistic regression was used to examine the association of sleep quality with postpartum depression.
  
  
  RESULTS
  Chance of depression in women with poor sleep quality was 3.34 times higher than those with good sleep quality (odds ratio = 3.34; 95% confidence interval: 2.04-5.48;P< 0.001). After controlling for some risk factors, an association observed between sleep quality and depression in postpartum women.
  
  
  CONCLUSIONS
  we found an association between sleep quality in women who had given birth in the last 3 months and symptoms of postpartum depression.
authors.affiliation: Department of Public Health, Faculty of Health, Ardabil University of Medical Sciences, Ardabil, Iran.
authors.forename: Sohrab
authors.initials: S
authors.lastname: Iranpour
authors.affiliation: Behavioral Sciences Research Center, Khorshid Hospital, Isfahan University of Medical Sciences, Isfahan, Iran.
authors.forename: Gholam Reza
authors.initials: GR
authors.lastname: Kheirabadi
authors.affiliation: Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran.
authors.forename: Ahmad
authors.initials: A
authors.lastname: Esmaillzadeh
authors.affiliation: Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran.
authors.forename: Motahar
authors.initials: M
authors.lastname: Heidari-Beni
authors.affiliation: Department of Epidemiology and Biostatistics, Isfahan University of Medical Sciences, Isfahan, Iran.
authors.forename: Mohammad Reza
authors.initials: MR
authors.lastname: Maracy
keywords: Postpartum depression; pregnancy; sleep quality