Análise da qualidade do sono e tempo de tela em adolescentes obesos

OBJECTIVE: Correlate the variables sleep latency, sleep duration and habitual sleep efficiency of the Pittsburgh Questionnaire (PSQI) and the duration of the screen time with the quality of sleep. METHODS: Twenty-four adolescents between 10 and 17 years old participated in this study, classified as obese by their body mass index (BMI). Sleep data were collected using the PSQI; and, the data on screen time, from a questionnaire developed by research group at laboratory in biomedical engineering and health (PEBS). For data analysis, descriptive statistics, Spearman correlation test, simple linear regression analysis. RESULTS: The average age of the individuals evaluated was 12.7±3.47 years, with an average BMI of 27.93 kg/m²±5.95. It was observed that the main component of PSQI that affects sleep quality is daytime dysfunction (20.9%). Regarding the screen time questionnaire and the quality of sleep, it was found that the use of cell phones after bedtime interferes by 20% in the hours slept. CONCLUSIONS: Daytime dysfunction, duration, latency, as well as habitual sleep efficiency are the components that most influence sleep quality; we also found that cell phone use affects about 20% of teenagers\u0027 sleep hours.