Social Jetlag and Excessive Daytime Sleepiness from a Sample of Russian Children and Adolescents

Insufficient nocturnal sleep is a primary source of excessive daytime sleepiness. Most previous research has focused on the disparity between sleep demands and study start times in adolescents. Fewer studies have focused on elementary schoolchildren. We hypothesize that late sleep timing is connecte...

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Bibliographic Details
Published in:Nature and science of sleep 2021-01, Vol.13, p.729-737
Main Authors: Kolomeichuk, Sergey N, Randler, Christoph, Morozov, Artem V, Gubin, Denis G, Drake, Christopher L
Format: Article
Language:English
Subjects:
Age
Eigenvalues
Elementary school students
Families & family life
Family income
Jet lag
Original Research
Pediatrics
Physiology
Puberty
Questionnaires
School buildings
Sleep
Sleep deprivation
Students
Surveys
Teenagers
Variance analysis
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Summary:Insufficient nocturnal sleep is a primary source of excessive daytime sleepiness. Most previous research has focused on the disparity between sleep demands and study start times in adolescents. Fewer studies have focused on elementary schoolchildren. We hypothesize that late sleep timing is connected to excessive daytime sleepiness in a sample of Russian children and adolescents. The major goals of our study were to evaluate excessive daytime sleepiness in Russian schoolchildren and adolescents using the Russian version of the Pediatric Daytime Sleepiness Scale (PDSS) and to estimate its relationship with sleep-wake parameters using the Munich Chronotype Questionnaire (MCTQ). Student subjects were from public educational facilities in the Republic of Karelia. They completed both the PDSS and the Munich Chronotype Questionnaire to estimate sleep parameters and chronotype (MSFsc). Five hundred and eleven students provided data for the PDSS and sleep-wake variables, and 479 for the full MCTQ data. The overall prevalence of Excessive Daytime Sleepiness (EDS) in our sample was 18%. The total PDSS score was inversely correlated with sleep length on school nights and was independent of respondents' sex. Higher PDSS scores were associated with later bedtimes on school days and free days, and shorter sleep duration on school days. Late chronotype and more pronounced social jetlag were both positively correlated with high PDSS scores. A negative correlation was found between chronotype and the duration of the sleep period on weekdays (  
ISSN:1179-1608
1179-1608
DOI:10.2147/NSS.S290895