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Later school start time is associated with better academic performance, sleep-wake rhythm characteristics, and eating behavior.
- Source :
-
Chronobiology international [Chronobiol Int] 2022 Nov; Vol. 39 (11), pp. 1444-1453. Date of Electronic Publication: 2022 Aug 31. - Publication Year :
- 2022
-
Abstract
- There are numerous studies which show that an early school start time has a negative impact on the sleep, well-being, and academic performance of students. There is not enough information on the association between school start time and eating disorders, however: the disruption of the circadian rhythm is known to be a risk factor for eating disorders. The aim of this study is to analyze the relationship between school start time (SST) and the sleep, well-being, academic performance, and eating behavior of children and adolescents. The study was conducted in April and May 2021 in two regions of Russia: the Komi Republic and Yekaterinburg. The online study involved the anonymous and voluntary participation of 6571 students in grades 6-11 (mean age: 14.5 ± 1.6 years, 60.1% female), who have morning classes. All participants were divided into three groups according to SST: 08:00 ( n = 3661), 08:30 ( n = 2020), and 09:00 ( n = 890). Each participant of the study indicated their place of residence, SST, age, sex, height, weight, academic performance, and filled out the Munich Chronotype Questionnaire, the Zung Self-Rating Depression Scale, and the Yale Food Addiction Scale for Children. As a result of multiple regression analysis, it was shown that schoolchildren with SST of 09:00 wake up at a later time on school days ( B = 0.432; ΔR <superscript>2</superscript>   = 0.039), sleep more ( B = 0.293; ΔR <superscript>2</superscript>   = 0.004), have less pronounced social jetlag ( B = -0.223; ΔR <superscript>2</superscript>   = 0.005) and sleep loss ( B = -0.292; ΔR <superscript>2</superscript>   = 0.005), and higher academic performance ( B = 0.113; ΔR <superscript>2</superscript>   = 0.003) than schoolchildren with SST of 08:00. As a result of logistic regression analysis, it was found that the frequency of the detection of food addiction is ~30% lower in schoolchildren with SST of 09:00 (OR = 0.690; 95% CI = 0.485-0.981) than in their peers with SST of 08:00. Thus, an overly early SST in Russia has a negative impact on the sleep function, academic performance, and eating behavior of children and adolescents.
Details
- Language :
- English
- ISSN :
- 1525-6073
- Volume :
- 39
- Issue :
- 11
- Database :
- MEDLINE
- Journal :
- Chronobiology international
- Publication Type :
- Academic Journal
- Accession number :
- 36043490
- Full Text :
- https://doi.org/10.1080/07420528.2022.2117050