title: Sleep disorders among undergraduate students in Southern Brazil.
abstract: OBJECTIVE
  Sleep disorders are very common in the young, being a result of the typical lifestyle lived by young people or a sleep disease that requires assistance and treatment. Furthermore, according to previous findings, sleep alterations can favor the development of depressive mood disorder. This survey aimed to assess the prevalence and characteristics of sleep disorders in a young population sample and their association with depressive symptoms.
  
  
  METHODS
  With a cross-sectional study design, self-administered questionnaires were applied to 1,180 undergraduate students. The Mini-Sleep Questionnaire (MSQ) and the Beck Depression Inventory were used to evaluate sleep disturbances and depressive symptoms, respectively. Bivariate and multivariate analyses were conducted, with the main findings being the presence of disrupted sleep (MSQ > 24), with an alpha error of 5%. The median point of the MSQ was 26 (P25-P75, 21-32 points).
  
  
  RESULTS
  Sleep alterations were found in 59.6%. The prevalence of depression was 9.3% (n = 110), mild depression being identified in 5.9% (n = 62), moderate in 3.4% (n = 40), and severe in 0.7% (n = 8) of the students. In logistic regression, female gender (OR, 1.48; CI 95%, 1.09-2.01; P = 0.012) and being depressed (OR, 4.42; CI 95%, 2.30-8.50; P < 0.001) were independent factors for disrupted sleep.
  
  
  CONCLUSIONS
  Sleep alterations are prevalent complaints among young people, being present in nearly 60% of the students. Female gender and being depressed are independent factors for having some form of sleep disorder.
authors.affiliation: University of Caxias do Sul, Rua General Arcy da Rocha Nóbrega, Caxias do Sul, RS, Brazil. asdrubalmd@gmail.com
authors.forename: Asdrubal
authors.initials: A
authors.lastname: Falavigna
authors.forename: Marcio Luciano
authors.initials: ML
authors.lastname: de Souza Bezerra
authors.forename: Alisson Roberto
authors.initials: AR
authors.lastname: Teles
authors.forename: Fabrício Diniz
authors.initials: FD
authors.lastname: Kleber
authors.forename: Maíra Cristina
authors.initials: MC
authors.lastname: Velho
authors.forename: Bruna
authors.initials: B
authors.lastname: Steiner
authors.forename: Natália Laste
authors.initials: NL
authors.lastname: Beckenkamp
authors.forename: Lucas
authors.initials: L
authors.lastname: Lazzaretti
authors.forename: Daniel
authors.initials: D
authors.lastname: Barazzetti
authors.forename: Fabíola
authors.initials: F
authors.lastname: Abruzzi
authors.forename: Natália
authors.initials: N
authors.lastname: Baseggio
authors.forename: Gustavo Lisboa
authors.initials: GL
authors.lastname: de Braga
authors.forename: Priscila
authors.initials: P
authors.lastname: Ferrari
authors.forename: Marcelo Vinícius
authors.initials: MV
authors.lastname: de Souza
mesh_terms: D000293:Adolescent; D000328:Adult; D001938:Brazil; D015897:Comorbidity; D003430:Cross-Sectional Studies; D003863:Depression / Q000175:diagnosis / Q000453:epidemiology; D003866:Depressive Disorder / Q000175:diagnosis / Q000453:epidemiology; D005260:Female; D006306:Health Surveys; D006801:Humans; D015994:Incidence; D008297:Male; D012307:Risk Factors; D012737:Sex Factors; D012893:Sleep Wake Disorders / Q000175:diagnosis / Q000453:epidemiology*; D013334:Students / Q000706:statistics & numerical data*; D011795:Surveys and Questionnaires; D055815:Young Adult