Resumo

DEL CIAMPO, Luiz A; LOURO, Adriana L; DEL CIAMPO, Ieda R L  e  FERRAZ, Ivan S. Characteristics of sleep habits among adolescents living in the city of Ribeirão Preto (SP). J. Hum. Growth Dev. [online]. 2017, vol.27, n.3, pp. 307-314. ISSN 0104-1282.  http://dx.doi.org/10.7322/jhgd.107097.

INTRODUCTION: Adolescence is the period of transition between childhood and adult life, characterized by changes in physical, emotional, sexual and social development. Although during this phase most individuals are healthy, it is known that health status is related to behaviors and habits such as a healthy diet, the regular practice of physical activity and good sleep quality, which contribute to optimum physical and cognitive performance. OBJECTIVE: To determine some sleep characteristics of adolescents living in the city of Ribeirão Preto (SP). METHODS: This was a cross-sectional descriptive study conducted at 14 schools in the city of Ribeirão Preto (SP) including adolescents aged 10 to 19 years who answered a questionnaire about sleep habits. The chi-square test was used to determine differences between genders with the aid of the EPI-INFO 7 software, with the level of significance set at p<0.05. RESULTS: A total of 535 adolescents (65% girls) were included in the study. Of these, 47.7% studied during the morning period and 10.3% had a job and studied in the evening period. Regarding sleep duration, 242 (45%) slept less than 9 hours per night during week days and 256 (48%) during the weekends (Saturday and Sunday), Of the total number of adolescents studied, 75.5% reported that they went to bed when they felt sleepy, 90% reported delay in falling asleep, 84.3% used some type of electronic equipment before going to sleep, and 44% reported that they woke up during the night. In the morning, 70.3% needed to be awakened, and 44.7% reported a delay in waking up. During the daytime, 70% felt somnolent and 34% reported that they slept during the day. Girls reported that they felt more daytime sleepiness (71.3%) and slept more during the day (62.1%) than boys (28.7% and 37.9%, respectively), with the difference being statistically significant (p < 0.05). CONCLUSIONS: Almost half the adolescents investigated sleep less than the minimum time considered ideal. Furthermore, the most of adolescents went to the bed when they felt sleepy, used electronic devices before to sleep, had difficulties to fall asleep, need to be awake in the morning and felt sleepy during the day. A substantial proportion of adolescents studied awoke at night and slept during the day. Compared to boys, girls felt sleepy and slept during the day significantly.

Palavras-chave : adolescent; sleep; sleep hygiene; sleep stages.

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