Association between screen time and sleep duration and the moderating effect of outdoor activity among preschoolers

MA Ying; JIAO Ting; HUANG Ya-shen; SHU Guan-yu; SONG Yan-yan; JIANG Lin

doi:10.11852/zgetbjzz2021-1587

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Chinese Journal of Child Health Care ›› 2022, Vol. 30 ›› Issue (6) : 664-668. DOI: 10.11852/zgetbjzz2021-1587

Clinical Research

Association between screen time and sleep duration and the moderating effect of outdoor activity among preschoolers

MA Ying^*, JIAO Ting, HUANG Ya-shen, SHU Guan-yu, SONG Yan-yan, JIANG Lin

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Abstract

Objective To examine the association between electronic screen time and sleep duration among preschoolers in Guangzhou, and to explore the moderate effect of outdoor activity, in order to provide reference for facilitating sleep health of children.Methods Using a random cluster sampling method, a total of 166 preschoolers in 3 kindergartens in Guangzhou were selected into this study from October to December 2020. Data on electronic screen time, outdoor activities, and sleep duration of children were collected by parental questionnaire. General linear regression models were used to analyze the association of electronic screen time and outdoor activities with sleep duration, and the moderating test was used to explore the moderating effect of outdoor activity. Results Totally 138 preschoolers (83.1%) had a sleep duration less than 10 hours per night, and the daily screen time of 86 preschoolers (51.8%) was more than 1 hours. The mobile electronic screen time was prominently associated with sleep duration (β=-0.298,95%CI:-0.603 - -0.021), while the TV screen time has no relation with sleep duration (β＝-0.144, 95%CI :-0.382 - 0.089). The moderating test demonstrated a null moderating effect of outdoor activity on the association between screen time and sleep duration (P>0.05). Conclusion Exposure to mobile electronic screen is adversely associated with the sleep duration among preschoolers, and outdoor activitiesplay no moderating role on this association.

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screen exposure / sleep duration / outdoor activities / preschoolers

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MA Ying, JIAO Ting, HUANG Ya-shen, SHU Guan-yu, SONG Yan-yan, JIANG Lin. Association between screen time and sleep duration and the moderating effect of outdoor activity among preschoolers[J]. Chinese Journal of Child Health Care. 2022, 30(6): 664-668 https://doi.org/10.11852/zgetbjzz2021-1587

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