title: [Excessive Daytime Sleepiness, Poor Quality Sleep, and Low Academic Performance in Medical Students].
abstract: BACKGROUND
  Quality of sleep and excessive daytime sleepiness (EDS) affect cognitive ability and performance of medical students. This study attempts to determine the prevalence of EDS, sleep quality, and assess their association with poor academic performance in this population.
  
  
  METHODS
  A descriptive, observational study was conducted on a random sample of 217 medical students from the Universidad Tecnológica de Pereira, who completed the Pittsburgh Sleep Quality Index (PSQI) questionnaire and the Epworth sleepiness scale. Sociodemographic, clinic and academic variables were also measured. Multivariate analyses for poor academic performance were performed.
  
  
  RESULTS
  The included students had a mean age of 21.7±3.3 years, of whom 59.4% were men. Almost half (49.8%) had EDS criteria, and 79.3% were poor sleepers (PSQI ≥ 5), while 43.3% had poor academic performance during the last semester. The bivariate analysis showed that having used tobacco or alcohol until intoxicated, fairly bad subjective sleep quality, sleep efficiency < 65%, and being a poor sleeper were associated with increased risk of low performance. Sleep efficiency < 65% was statistically associated with poor academic performance (P=.024; OR = 4.23; 95% CI, 1.12-15.42) in the multivariate analysis.
  
  
  CONCLUSIONS
  A poor sleep quality determined by low efficiency was related to poor academic achievement at the end of semester in medical students.
authors.affiliation: Grupo de Investigación en Farmacoepidemiología y Farmacovigilancia, Universidad Tecnológica de Pereira-Audifarma, S.A., Pereira, Colombia.
authors.forename: Manuel Enrique
authors.initials: ME
authors.lastname: Machado-Duque
authors.affiliation: Departamento de Psiquiatría, Universidad Tecnológica de Pereira, Pereira, Colombia.
authors.forename: Jorge Enrique
authors.initials: JE
authors.lastname: Echeverri Chabur
authors.affiliation: Grupo de Investigación en Farmacoepidemiología y Farmacovigilancia, Universidad Tecnológica de Pereira-Audifarma, S.A., Pereira, Colombia. Electronic address: machado@utp.edu.co.
authors.forename: Jorge Enrique
authors.initials: JE
authors.lastname: Machado-Alba
mesh_terms: D000293:Adolescent; D000328:Adult; D000428:Alcohol Drinking / Q000453:epidemiology; D003071:Cognition / Q000502:physiology; D003105:Colombia / Q000453:epidemiology; D006970:Disorders of Excessive Somnolence / Q000453:epidemiology*; D004521:Educational Measurement; D005260:Female; D006801:Humans; D008297:Male; D015999:Multivariate Analysis; D015995:Prevalence; D012890:Sleep / Q000502:physiology*; D012893:Sleep Wake Disorders / Q000453:epidemiology*; D012907:Smoking / Q000453:epidemiology; D013337:Students, Medical / Q000706:statistics & numerical data*; D011795:Surveys and Questionnaires; D055815:Young Adult
keywords: Colombia; Estudiantes de Medicina; Excessive Daytime Sleepiness disorders; Rendimiento escolar bajo; Sleep disorders; Trastornos de somnolencia excesiva; Trastornos del sueño; Underachievement Medical students