School of Public Health, Tianjin Medical University, Tianjin, China.
Tianjin Key Laboratory of Ocular Trauma, Tianjin, China.
Br J Ophthalmol. 2024 May 21;108(6):879-883. doi: 10.1136/bjo-2023-323688.
This study aimed to determine the prevalence of myopia among children and adolescents aged 6-16 years during COVID-19 pandemic in Tianjin, China.
This was a cross-sectional study using data from the Tianjin Child and Adolescent Research of Eye between March and June in 2021. A total of 909 835 children and adolescents aged 6-16 years from 1348 primary and secondary schools in Tianjin, China were recruited. Prevalence of myopia with 95% CIs was described in different regions, sexes and ages. The regions-standardised prevalence rate and chain growth rate of myopia in different ages were described the characteristics of myopia.
A total of 864 828 participants (95.05% participation rate) were included in the analysis. The age range was 6-16 with a mean age of 11.50±2.79 years. The overall prevalence of myopia was 54.71% (95% CI 54.60% to 54.81%). The prevalence of myopia was 57.58% (95% CI 57.43% to 57.73%) for girls and 52.05% (95% CI 51.91% to 52.20%) for boys. Students living in the six central districts had the highest prevalence of moderate myopia (19.09% (95% CI 19.01% to 19.17%)) and high myopia (5.43% (95% CI 5.39% to 5.48%)). The regions-standardised prevalence of myopia was increased by age and the highest chain growth rate of myopia was up to 47.99% at 8 years.
The prevalence of myopia in Tianjin is high during COVID-19 pandemic. The progression of myopia started to increase dramatically at 8 years, and the increasing slowed down at 14 years. For policy-makers, intervention in the lower age groups may be important to control myopia progression.
本研究旨在确定中国天津市 COVID-19 大流行期间 6-16 岁儿童和青少年近视的患病率。
这是一项横断面研究，使用了 2021 年 3 月至 6 月期间天津儿童青少年眼研究的数据。共招募了来自中国天津市 1348 所中小学的 909835 名 6-16 岁的儿童和青少年。描述了不同地区、性别和年龄的近视患病率，并描述了不同年龄的近视标准化患病率和链式增长率特征。
共有 864828 名参与者（95.05%的参与率）纳入分析。年龄范围为 6-16 岁，平均年龄为 11.50±2.79 岁。总体近视患病率为 54.71%（95%CI 54.60%至 54.81%）。女生近视患病率为 57.58%（95%CI 57.43%至 57.73%），男生为 52.05%（95%CI 51.91%至 52.20%）。居住在六个中心区的学生中度近视患病率最高（19.09%（95%CI 19.01%至 19.17%））和高度近视患病率最高（5.43%（95%CI 5.39%至 5.48%））。近视的地区标准化患病率随年龄增长而增加，近视的最高链式增长率高达 8 岁时的 47.99%。
COVID-19 大流行期间天津市近视患病率较高。近视的进展在 8 岁时开始急剧增加，14 岁时增加速度放缓。对于决策者而言，干预低龄组可能对控制近视进展很重要。
