Sleep variability and fatigue in adolescents: Associations with school‐related features

Abstract

This study aims to evaluate the influences of sleep duration and sleep variability (SleepV), upon adolescents' school-related situations. The Health Behaviour in School-Aged Children (HBSC) survey is based on a self-completed questionnaire. The participants were 3164 pupils (53.7% girls), attending the 8th and 10th grades, 14.9 years old, and were inquired about subjective sleep duration during the week and weekends, SleepV, fatigue, difficulties in sleep initiation, school achievement, feelings towards schools, pressure with school work and skipping classes. Multiple regression models used, as dependent variables: (a) school achievement, (b) disliking school, (c) pressure with school work and (d) skipping classes, using as independent variables, each of the remaining school-related variables, fatigue, total sleep duration and difficulties in sleep initiation. The average sleep duration in the week and during weekdays was lower than recommended for these age groups, and almost half of students had high SleepV between weekdays and weekends. A logistic model revealed that the absence of SleepV was associated with lower perception of school work pressure, less frequent skipping classes, more infrequent fatigue and more infrequent difficulties in sleep initiation. Poor sleep quality, SleepV and insufficient sleep duration affected negatively school-related variables.

Perception of quantity and quality of sleep and their association with health related quality of life and life satisfaction during adolescence

“…Several studies of children and adolescents have pointed out the relations of sleep duration with: daytime sleepiness [1][2][3], body mass index (BMI) [2,[4][5][6][7], type II diabetes and insulin resistance [8], sleep disorders [1], health characteristics [2], high blood pressure [9], pain [10][11][12], cognitive tests and academic success [3, [13][14][15][16], subjective psychological wellbeing [17,18], socioeconomic status [2,5], habits such as high screen or TV viewing time [5,16,19,20], low or moderate physical activity [5,21], poor dietary intake and quality [20,22], and risk-taking behaviours [19,[23][24][25][26][27][28]. Some studies considered not only the parameter sleep duration, but also sleep deprivation, considering sleep deprivation the difference between week-days sleep duration and week-ends sleep duration [16,18,19].…”

“…Some studies considered not only the parameter sleep duration, but also sleep deprivation, considering sleep deprivation the difference between week-days sleep duration and week-ends sleep duration [16,18,19].…”

Association between the amount of sleep and obesity in Chilean schoolchildren

“…Many countries report a high incidence of sleep disorders in youth 19 and, specifically in children, who, given the characteristics of present-day living, are unlikely to be able to sleep regularly or the appropriate number of hours. Health problems associated to lack of sleep, as well as the possible mechanisms of this association have also been documented.…”

The Mediating Role of Pathological Worry in Associations Between Dissociative Experiences and Sleep Quality Among Health Staff

“…Insufficient sleep results in rebound effect, refers to a recovery sleep consisting of spending longer time in bed, proportionately more rapid eye movement (REM) and deeper slow-wave sleep (Carskadon & Dement, 2011). However, habitually decreased nocturnal sleep has severe consequences on quality of life (Knutson, Spiegel, Penev, & Van Cauter, 2007;Matos, Gaspar, Tomé, & Paiva, 2016;Paiva, Gaspar, & Matos, 2015;Zeitlhofer et al, 2000). Poor sleepers have more negative thoughts at bedtime relative to good sleepers (Kuisk, Bertelson, & Walsh, 1989;Nicassio, Mendlowitz, Fussell, & Petras, 1985;Van Egeren, Haynes, Franzen, & Hamilton, 1983).…”