Department of Medical Statistics and Epidemiology, Guangzhou Key Laboratory of Environmental Pollution and Health Assessment, Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China.
School of Optometry and Vision Science, Faculty of Health, Queensland University of Technology, Brisbane, 4059 QLD, Australia.
Int J Environ Res Public Health. 2020 Mar 26;17(7):2216. doi: 10.3390/ijerph17072216.
Screen media usage has become increasingly prevalent in daily life with children being exposed to screens at an early age. This is a growing public health concern with evidence linking screen exposure to detrimental health outcomes, whereas relationship between screen exposure and the presence of astigmatism among preschoolers remains unknown, thus we aimed to resolve this issue. During the 2017 survey of the Longhua Child Cohort Study, data of 29,595 preschoolers were collected via a caregiver-reported questionnaire regarding socio-demographics, screen exposure and refraction. Cox regression models were adopted to generate adjusted prevalence ratios (APR) and 95% confidence intervals (CI) to estimate the association between early screen exposure and astigmatism. 28,029 preschoolers were included in the final analysis. After adjustment for potential confounders, screen exposure during early life was significantly associated with the increased risk of astigmatism (APR and 95% CI: 2.25, 1.76-2.88), and the greatest risk was observed in the period from birth to 1-year (APR and 95% CI: 3.10, 2.41-3.98). The risk of astigmatism increased with both the total years of exposure and the average daily duration of screen exposure. Our findings suggested that preschoolers who were exposed to screens during early life might have an increased risk of astigmatism.
屏幕媒体的使用在日常生活中变得越来越普遍，儿童在很小的时候就开始接触屏幕。这是一个日益严重的公共卫生问题，有证据表明屏幕暴露与健康不良后果有关，而屏幕暴露与学龄前儿童散光之间的关系尚不清楚，因此我们旨在解决这个问题。在 2017 年的龙华儿童队列研究调查中，通过 caregiver 报告的问卷收集了 29595 名学龄前儿童的社会人口统计学、屏幕暴露和屈光数据。采用 Cox 回归模型生成调整后的患病率比（APR）和 95%置信区间（CI），以估计早期屏幕暴露与散光之间的关联。最终分析纳入了 28029 名学龄前儿童。在校正潜在混杂因素后，生命早期的屏幕暴露与散光风险增加显著相关（APR 和 95%CI：2.25，1.76-2.88），在出生至 1 岁期间风险最大（APR 和 95%CI：3.10，2.41-3.98）。散光的风险随着暴露总年限和屏幕暴露平均每日持续时间的增加而增加。我们的研究结果表明，生命早期接触屏幕的学龄前儿童可能有更高的散光风险。
