Khan Asaduzzaman, Moni Mohammad A, Khan Shanchita R, Burton Nicola W
School of Health and Rehabilitation Sciences, The University of Queensland, Australia.
School of Public Health and Social Work, Queensland University of Technology (QUT), Australia.
Scand J Public Health. 2023 Aug;51(6):918-925. doi: 10.1177/14034948221082459. Epub 2022 Mar 30.
Prolonged screen time (ST) is a potential concern for poor wellbeing. This study aimed to examine the associations of different types of ST with life satisfaction among adolescents.
Data were from 380,446 adolescents (aged 11-15 years, 51% girls) across 37 European and North American countries who completed the 2010 and 2014 Health Behaviour in School-Aged Children surveys. Participants reported h/day during free time spent on television, electronic games, and computer/other devices. Life satisfaction was assessed using a 10-point scale (low life satisfaction ⩽5).
Generalized additive modelling showed non-linear associations for each ST type, with low life satisfaction increasing monotonically for >1 h/day of electronic gaming or computer/other device and >2 h/day of watching television. Multilevel multivariable modelling showed that >4 h/day of watching television was associated with 26% higher odds for boys (OR 1.26; 95% CI:1.21-1.32) and 52% higher odds for girls (1.52; 1.46-1.59) of low life satisfaction than for ⩽1 h/day of television. Electronic gaming >4 h/day was associated with low life satisfaction with odds 42% higher in boys (1.42, 1.36-1.48) and 69% higher in girls (1.69, 1.61-1.76). A similar association was found for >4 h/day of computer/other device for boys (1.43, 1.37-1.49) and girls (1.71, 1.65-1.77).
Low levels of ST may be beneficial; however, prolonged periods are associated with low life satisfaction among adolescents, in particular among girls. Results support ⩽2 h/day restriction of ST and highlight research is needed to understand underlying mechanisms of ST and wellbeing, which may not reflect active versus passive content.
长时间的屏幕使用时间（ST）是影响幸福感的一个潜在问题。本研究旨在探讨不同类型的屏幕使用时间与青少年生活满意度之间的关联。
数据来自37个欧洲和北美国家的380446名青少年（年龄在11至15岁之间，51%为女孩），他们完成了2010年和2014年的学龄儿童健康行为调查。参与者报告了在空闲时间每天花在电视、电子游戏和电脑/其他设备上的小时数。生活满意度采用10分制进行评估（低生活满意度≤5分）。
广义相加模型显示，每种屏幕使用时间类型均呈非线性关联，对于每天电子游戏或使用电脑/其他设备超过1小时以及每天看电视超过2小时的情况，低生活满意度呈单调上升趋势。多水平多变量模型显示，与每天看电视≤1小时相比，每天看电视超过4小时的男孩低生活满意度的几率高26%（比值比[OR]1.26；95%置信区间[CI]：1.21 - 1.32），女孩高52%（1.52；1.46 - 1.59）。每天电子游戏时间超过4小时与低生活满意度相关，男孩的几率高42%（1.42，1.36 - 1.48），女孩高69%（1.69，1.61 - 1.76）。对于每天使用电脑/其他设备超过4小时的情况，男孩（1.43，1.37 - 1.49）和女孩（1.71，1.65 - 1.77）也发现了类似的关联。
低水平的屏幕使用时间可能有益；然而，长时间的屏幕使用与青少年的低生活满意度相关，尤其是女孩。研究结果支持将屏幕使用时间限制在每天≤2小时，并强调需要开展研究以了解屏幕使用时间与幸福感之间的潜在机制，这可能并不反映主动与被动内容的差异。
