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  • Title: [Excessive Daytime Sleepiness, Poor Quality Sleep, and Low Academic Performance in Medical Students].
    Author: Machado-Duque ME, Echeverri Chabur JE, Machado-Alba JE.
    Journal: Rev Colomb Psiquiatr; 2015; 44(3):137-42. PubMed ID: 26578413.
    Abstract:
    INTRODUCTION: 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. MATERIAL AND 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.
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