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Sleep quality of medical students and university performance


Sleep is a fundamental biological function and disturbances of this process can cause significant losses, including cognitive performance, compromising the quality of life. However, due to the urban, intense routine, the sleep time of medical students is reduced, which has a negative impact on health, compromising cognitive functions, for which academic performance is a priority.


To verify if there is a relationship between student's sleep quality and academic performance, based on test scores, applied to the 4th year Medicine students in 2017.


A prospective, cross-sectional and descriptive study was performed. The sample consisted of 41 students. Data collection was based on the Pittsburgh Sleep Quality Index (PSQI), a self-administered questionnaire. Regarding the student's grades, they were acquired through the subject's representatives, and the test scores were averaged. The SSPS software was used and non-parametric analysis was performed.


With a sample composed by 28 males and 13 females, average age of 24 years. The academic performance average was 71.3 (range 60-82), based on the result of the PSQI, the group with good sleep had a grade average of 73.6; the group with poor sleep 71.5; and those with sleep disorder 69,2. No statistically significant difference was observed regarding sleep quality and academic performance (p = 0.340).


The study showed that students with higher PSQI scores, meaning those with poor sleep quality and / or disturbance, had a slightly lower average test scores than students with good quality.


Sleep disorders due to excessive drowsiness; Medical education; Medical students; Sleep; Sleep Disorders.


Área Clínica


FAG - Parana - Brasil


Marcelo Eiji Koyashiki, Carolina Ferraz De Paula Soares, Jaime Ventura Da Silva Junior, Juliana Emi Shimabukuro