Kohyama J, Ono M, Anzai Y, Kishino A, Tamanuki K, Moriyama K, Saito Y, Emoto R, Fuse G, Hatai Y. Factors associated with sleep duration among pupils.
Pediatr Int 2020;
62:716-724. [PMID:
32012386 DOI:
10.1111/ped.14178]
[Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2018] [Revised: 01/13/2020] [Accepted: 01/30/2020] [Indexed: 12/15/2022]
Abstract
BACKGROUND
Sleep shortage has been pervasive among pupils.
METHODS
Multiple regression analysis was used to analyze 2,722 questionnaires obtained from grade 5 to 12 pupils, to determine factors associated with sleep duration.
RESULTS
Significant regression formulae for sleep duration were obtained for all school types: adjusted R2 / P value were 0.14/<0.001 for elementary school; 0.11/<0.001 for junior high school; 0.06/<0.001 for high school. Longer after-school activities (standardized regression coefficient/ P value were -0.22/<0.001 for elementary school; -0.10/<0.01 for junior high school; -0.18/<0.001 for high school) and more sleepiness (-0.09/<0.001 for elementary school; -0.07/<0.05 for junior high school; -0.07/<0.05 for high school) were significantly associated with reduced sleep duration for all school types. In both elementary and junior high schools, the higher grade (-0.53/<0.001 for elementary school; -0.10/<0.01 for junior high school), and longer weekday screen time (-0.15/<0.001 for elementary school; -0.19/<0.001 for junior high school) were also significantly associated with sleep loss. In elementary school, irregular dinner (-0.07/<0.05), breakfast skipping (-0.11/<0.001), longer weekend screen time (-0.09/<0.05) and better self-reported academic performance (0.07/<0.05) also revealed significant associations with sleep loss. In high school, reduction of sleep duration was also significantly associated with higher standardized body mass index (-0.08/<0.05).
CONCLUSIONS
Excessive after-school activity might be considered in association with pupils' sleep reduction.
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