Bapat Radhika, van Geel Mitch, Vedder Paul
Institute of Education and Child Studies, Leiden University, PO Box 9555, Leiden, 2300RB the Netherlands.
J Child Fam Stud. 2017;26(1):80-87. doi: 10.1007/s10826-016-0557-8. Epub 2016 Sep 21.
In this article physical activity, screen time, and academic work are studied as mediators between socio-economic status and sleep duration among school children in India. Participants were 268 school children aged 10-15 from Pune, India. They were sampled from private schools and impoverished public schools. We found that the highest socio-economic status children reported almost an hour and a half less sleep than their lowest socio-economic status counterparts. The lower socio-economic status children reported more physical activity and screen time, and the higher socio-economic status children reported spending more time on academic work. Although screen time was negatively related to sleep duration, academic work was the strongest mediator between socio-economic status and sleep duration. Physical activity was not a significant mediator. In India, academic work is a strong predictor of a lower sleep duration among children and adolescents.
在本文中，身体活动、屏幕使用时间和学业被作为印度学童社会经济地位与睡眠时间之间的中介因素进行研究。参与者为来自印度浦那的268名10至15岁的学童。他们从私立学校和贫困公立学校中抽样选取。我们发现，社会经济地位最高的儿童比社会经济地位最低的儿童睡眠时间少近一个半小时。社会经济地位较低的儿童报告的身体活动和屏幕使用时间更多，而社会经济地位较高的儿童报告在学业上花费的时间更多。虽然屏幕使用时间与睡眠时间呈负相关，但学业是社会经济地位和睡眠时间之间最强的中介因素。身体活动不是一个显著的中介因素。在印度，学业是儿童和青少年睡眠时间较短的一个有力预测因素。
