新冠肺炎疫情期间广东省小学生视屏行为现状及影响因素

目的 了解新型冠状肺炎疫情期间广东省小学生网课及视屏行为现状及其影响因素,为儿童视屏行为干预和健康促进提供依据.方法 采用方便抽样的方法抽取广东省广州市、湛江市、中山市共5 266名6～12岁小学生家长进行线上问卷调查.采用方差分析或x2检验比较各年级学生网课和视屏行为现状的差异,采用多因素Logistic回归分析娱乐...

Current status and correlates of screen time among children in Guangdong during the COVID-19 pandemic

  Objective  To investigate the current status of online classes, screen time and its influencing factors among primary school students in Guangdong during the 2019 novel coronavirus pandemic.  Methods  Using the convenience sampling method, a total of 5 266 pupils aged 6-12-years-old from Guangzhou, Zhanjiang, and Zhongshan participated in the online questionnaire. ANOVA or chi-square tests were performed to compare differences in online classes and screen time between grades, and multinomial Logistic regression was performed to analyze the correlates of recreational screen time.  Results  The prevalence of prolonged recreational screen time was 42.2% and 55.2% on weekdays and weekends, respectively. Recreational screen time increased by 40.31 min/d on weekdays and 33.07 min/d on weekends, compared to usual school semesters. The average duration of an online class was (26.07±9.62) min, which totaled (110.41±51.98)min per day. Sex, grade, being the only child, and parents' education levels were identified as the influencing factors of prolonged recreational screen time. Children who practiced moderate levels (weekdays: OR=1.27; weekends: OR=1.40; P < 0.05) or lower levels of physical activity (weekdays: OR=1.86; weekend: OR=1.84; P < 0.05) were at a higher risk of prolonged recreational screen time than those who practiced more vigorous physical activity. Children whose parents limited their screen time to a moderate (weekdays: OR=1.61, P < 0.05) or lower level (weekdays: OR=1.32, P < 0.05) had a higher risk of prolonged recreational screen time than those with a higher frequency. Children with parents' recreational screen time ≥2 h/d had a higher risk of prolonged recreational screen time than the reference group; children who exhibited moderate to vigorous levels of physical activity < 1 h/d (weekdays: OR=1.31, P < 0.05), and those used electronic devices for learning 1-2 h/d (weekdays: OR=2.65; weekend: OR=2.65; P < 0.05) or for ≥2 h/d (weekdays: OR=4.05, weekend: OR=5.24, P < 0.05) were at a higher risk of prolonged recreational screen time than the reference group.  Conclusion  During the COVID-19 pandemic, the level of screen time among children in Guangdong was high. Behavioral monitoring and targeted interventions are needed to promote children's health.