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Sleep quality and its association with metabolic variables in medical students of an institution in the Amazon


A medical student's study routine is intense, with full-time classes plus nighttime activities. Taking up most of the student's time, overwork can end up interfering with the sleep quality of these individuals and can be a risk factor for the development of metabolic disorders due to the lack of control of their biological cycles.


The present study aimed to correlate sleep habits and metabolic variables in medical students at an educational institution in the Amazon.


This was an observational cross-sectional study of analytical character aimed at collecting information on habits and clinical aspects related to sleep quality in medical students from the 1st to the 8th period of the course. The study had two data collection instruments: an Epworth sleepiness scale questionnaire, a questionnaire prepared by the researchers, containing 15 items (questions), which took as reference the students' day and night habits. An anthropometric measurement collection was also used, which included: weight, height, measurement of cervical, waist and hip circumferences and measurement of systolic (SBP) and diastolic (DBP) blood pressure, body mass index (BMI) and waist-to-hip ratio.


A total of 117 students who regularly attended medical school with a mean age of 22 years were evaluated. Of these, 59% had pathological sleepiness, most had poor sleep quality, 56% of the sample had fragmented sleep and 46% non-repairing. Nocturia (p = 0.02) and use of stimulants (p = 0.007) were the only sleep variables with statistical significance, and frequency and use (respectively) were higher in the 2nd, 3rd and 4th years. of course. In metabolic variables, the only one with significance was sedentary lifestyle (p = 0.03), which increased in the 2nd, 3rd and 4th years. With the research, there was no correlation between metabolic variables and sleep quality.


Most medical students, from the first to the fourth year of the course, have a poor quality of sleep, which is fragmenting most of the sample, on average less than 6 hours a night, non-repairing and during the day students have excessive drowsiness, and some use stimulants to stay awake and study.


Medicine; Education Medical; Sleep Wake Disorders.


Área Básica


Centro Universitário Metropolitano da Amazônia (UNIFAMAZ) - Para - Brasil


Maria Claudia Soares Oliveira, Gabriel Pinheiro Brito, Matheus Siqueira do Nascimento Ramos, Samuel da Silva Ribeiro, Yorhanna de Morais Cardoso, Kelyane Oliveira Lima, Rafael de Azevedo Silva, Flávia Siqueira Cunha, Pedro Murilo Moreira Pantoja