title: Daytime sleepiness, poor sleep quality, eveningness chronotype, and common mental disorders among Chilean college students.
abstract: OBJECTIVE
  To evaluate whether daytime sleepiness, poor sleep quality, and morningness and eveningness preferences are associated with common mental disorders (CMDs) among college students.
  
  
  METHODS
  A total of 963 college students completed self-administered questionnaires that collected information about sociodemographic characteristics, sleep quality characteristics, CMDs, and other lifestyle behaviors.
  
  
  RESULTS
  The prevalence of CMDs was 24.3% (95% confidence interval [CI] [21.5%, 27.1%]) among all students. Prevalence estimates of both excessive daytime sleepiness and poor sleep quality were higher among females (35.4% and 54.4%) than males (22.0% and 45.8%). Cigarette smoking was statistically significantly and positively associated with having CMDs (p = .034). Excessive daytime sleepiness (odds ratio [OR] = 3.65; 95% CI [2.56, 4.91]) and poor sleep quality (OR = 4.76; 95% CI [3.11, 7.29]) were associated with increased odds of CMDs.
  
  
  CONCLUSIONS
  Given the adverse health consequences associated with both sleep disorders and CMDs, improving sleep hygiene among college students is imperative to public health.
authors.affiliation: a Multidisciplinary International Research Training Program, Department of Epidemiology , Harvard University School of Public Health , Boston , Massachusetts.
authors.forename: Tessa
authors.initials: T
authors.lastname: Concepcion
authors.forename: Clarita
authors.initials: C
authors.lastname: Barbosa
authors.forename: Juan Carlos
authors.initials: JC
authors.lastname: Vélez
authors.forename: Micah
authors.initials: M
authors.lastname: Pepper
authors.forename: Asterio
authors.initials: A
authors.lastname: Andrade
authors.forename: Bizu
authors.initials: B
authors.lastname: Gelaye
authors.forename: David
authors.initials: D
authors.lastname: Yanez
authors.forename: Michelle A
authors.initials: MA
authors.lastname: Williams
mesh_terms: D000293:Adolescent; D002677:Chile / Q000453:epidemiology; D005260:Female; D006801:Humans; D008297:Male; D001523:Mental Disorders / Q000150:complications / Q000209:etiology*; D007319:Sleep Initiation and Maintenance Disorders / Q000150:complications / Q000209:etiology*; D013334:Students / Q000523:psychology*; D011795:Surveys and Questionnaires; D014495:Universities; D055815:Young Adult
keywords: Chile; college students; daytime sleepiness; mental disorders; sleep quality