School of Public Health, Tianjin Medical University, Tianjin, China.
Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, China.
Front Public Health. 2023 Jan 10;10:1042822. doi: 10.3389/fpubh.2022.1042822. eCollection 2022.
This study examined the association among socioeconomic status (SES), screen time, and outdoor play in children at different ages in the GECKO Drenthe birth cohort study.
Valid data were obtained from two surveys at ages 3-4 years and 10-11 years. Screen time (TV watching and computer use) and outdoor play were reported by parents. Childhood SES was derived by a synthetic "Equivalized Household Income Indicator," an estimated disposable income. Quantile regression models (cross-sectional analysis) and linear regression models (change between 3-4 and 10-11 years) were used.
In general, screen time increased strongly from a median of 51 min/day at 3-4 years ( = 888) to 122 min/day at 10-11 years ( = 1023), whereas time spent on outdoor play remained stable over age (77 min/day at 3-4 years and 81 min/day at 10-11 years). More time spent on outdoor play (50th quantile) was found in children with low SES families at 3-4 years, while at 10-11 years, more outdoor play was found in the high SES group. At 10-11 years, in the higher ranges of screen time, children from high SES had relatively lower screen time [50th quantile: -10.7 (-20.8; -0.6); 75th quantile: -13.6 (-24.4; -2.8)]. In the longitudinal analysis ( = 536), high SES was associated with an increasing time spent on outdoor play [11.7 (2.7; 20.8)].
Socioeconomic disparities in children's outdoor play and screen behavior may be more obvious with increasing age. Low SES may facilitate both outdoor play (at 3-4 years) and screen time (at 10-11 years); however, children from high SES families develop slightly more favorable behavior patterns with age.
本研究在格罗宁根儿童队列研究(GECKO Drenthe)中,考察了不同年龄段儿童的社会经济地位(SES)、屏幕时间和户外活动之间的关联。
从 3-4 岁和 10-11 岁的两次调查中获得了有效数据。父母报告了屏幕时间(看电视和使用计算机)和户外活动时间。儿童 SES 源自一个综合的“家庭等效收入指标”,这是一个估计的可支配收入。使用了分位数回归模型(横断面分析)和线性回归模型(3-4 岁至 10-11 岁之间的变化)。
总体而言,屏幕时间从 3-4 岁时的中位数 51 分钟/天( = 888)强烈增加到 10-11 岁时的 122 分钟/天( = 1023),而户外活动时间在整个年龄段保持稳定(3-4 岁时为 77 分钟/天,10-11 岁时为 81 分钟/天)。在 3-4 岁时,SES 较低的家庭的孩子花更多的时间进行户外活动(第 50 分位数),而在 10-11 岁时,SES 较高的家庭的孩子花更多的时间进行户外活动。在 10-11 岁时,在较高的屏幕时间范围内,SES 较高的孩子的屏幕时间相对较低[第 50 分位数:-10.7(-20.8;-0.6);第 75 分位数:-13.6(-24.4;-2.8)]。在纵向分析中( = 536),SES 较高与户外活动时间的增加有关[11.7(2.7;20.8)]。
随着年龄的增长,儿童户外活动和屏幕行为方面的社会经济差异可能更加明显。低 SES 可能既促进户外活动(在 3-4 岁时)又促进屏幕时间(在 10-11 岁时);然而,SES 较高的家庭的孩子随着年龄的增长会形成稍微更有利的行为模式。