title: Relationship of day-to-day reproductive hormone levels to sleep in midlife women.
abstract: BACKGROUND
  We analyzed data from a single menstrual cycle from 630 women, aged 43 to 53 years, in the Daily Hormone Study component of the Study of Women's Health Across the Nation to determine whether hormone levels are associated with trouble sleeping as women enter the menopausal transition.
  
  
  METHODS
  Women recorded whether they had trouble sleeping the previous night. Morning urine specimens were obtained for daily determinations of levels of luteinizing hormone, follicle-stimulating hormone, estradiol metabolites (ie, estrone conjugates), and the progesterone metabolite (pregnanediol glucuronide). Women were categorized as premenopausal or early perimenopausal by bleeding patterns.
  
  
  RESULTS
  Average adjusted odds of reporting trouble sleeping were 29% higher in perimenopausal than in premenopausal women. The highest percentages of women in both menopausal groups reported trouble sleeping in the beginning or at the end of their cycle. After controlling for covariates, pregnanediol glucuronide level was associated with increased trouble sleeping in perimenopausal women and follicle-stimulating hormone level was associated with increased trouble sleeping in premenopausal women. Mood and vasomotor symptoms were the strongest and most consistent cocontributors to trouble sleeping.
  
  
  CONCLUSIONS
  In this community-based sample of middle-aged women, the most trouble sleeping was observed at the beginning and end of the menstrual cycle.
authors.affiliation: Department of Psychiatry, Rush University Medical Center, Chicago, IL 60612, USA. hkravitz@rush.edu
authors.forename: Howard M
authors.initials: HM
authors.lastname: Kravitz
authors.forename: Imke
authors.initials: I
authors.lastname: Janssen
authors.forename: Nanette
authors.initials: N
authors.lastname: Santoro
authors.forename: Joyce T
authors.initials: JT
authors.lastname: Bromberger
authors.forename: Miriam
authors.initials: M
authors.lastname: Schocken
authors.forename: Susan A
authors.initials: SA
authors.lastname: Everson-Rose
authors.forename: Kelly
authors.initials: K
authors.lastname: Karavolos
authors.forename: Lynda H
authors.initials: LH
authors.lastname: Powell
mesh_terms: D000328:Adult; D015331:Cohort Studies; D005260:Female; D042341:Gonadal Hormones / Q000378:metabolism*; D006801:Humans; D008597:Menstrual Cycle / Q000378:metabolism*; D008875:Middle Aged / Q000502:physiology*; D015999:Multivariate Analysis; D016017:Odds Ratio; D047648:Perimenopause / Q000378:metabolism; D012890:Sleep / Q000502:physiology*; D020919:Sleep Disorders, Intrinsic / Q000453:epidemiology / Q000378:metabolism; D014481:United States / Q000453:epidemiology
chemical_list: D042341:Gonadal Hormones