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      A baseline survey on the establishment of myopia follow-up cohort among students in Peixian, Xuzhou City

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          Abstract

          Objective This study aimed to find out the myopia rate and related ocular biological parameters of grade 1–3 students in Peixian, Xuzhou City, and to establish a cohort observation population, so as to provide baseline reference for control strategies for myopia and reduce the myopia rate.

          Methods A total of 1 952 students from two nine-year schools in Peixian were selected by stratified cluster sampling in June 2020. Visual examination was administered by trained personnel using uniformly equipped instruments, including uncorrected visual acuity, diopter, intraocular pressure, axial length.

          Results The overall myopia rate of students from grade one to grade three in two schools in Peixian was 21.77%, and the myopia rate of girls (23.81%) was significantly higher than that of boys (20.16%). With the growth of age and grade, the myopia rate increased continuously, and the difference was statistically significant (χ 2 = 134.10, 144.30, P<0.05). The myopia rate of 6-year-old group was 8.87%. The axial length of the left and right eyes of the myopic group was significantly higher than that of the non-myopic group ( t = 411.95, 366.85, P<0.01), the intraocular pressure and mean corneal curvature of the left eye of the myopic group were higher than those of the non-myopic group ( t = 5.91, 10.22, P<0.05).

          Conclusion The baseline survey results show that the myopia rate of grade 1–3 in Peixian of Xuzhou City is low, but myopia has occurred in the 6-year-old group. With the growth of age and grade, the myopia rate continues to rise. So it is urgent to explore effective and feasible myopia prevention and control measures.

          Abstract

          【摘要】 目的 了解徐州市沛县一至三年级学生的近视率及相关眼部生物学参数, 建立队列观察人群, 为降低近视率提 供基线参考依据。 方法 2020年6月, 采用分层整群抽样方法, 抽取沛县的2所九年制学校, 共1 952名学生。由统一培 训的监测人员使用统一配备的仪器开展监测, 监测项目包括裸眼视力, 散瞳前后屈光度, 眼压值, 眼轴长度等指标, 开展近 视研究队列的基线调査。 结果 徐州市沛县2学校一至三年级学生的总体近视率为21.77%, 女生 (23.81%)髙于男生 (20.16%), 随着年龄和年级增长, 近视率不断升髙, 差异均有统计学意义 (χ 2 值分别为 134.10, 144.30, P值均<0.05), 6岁 组已出现近视, 为 8.87%。近视组学生左右眼的眼轴长度均髙于非近视组学生, 差异均有统计学意义 ( t 值分别为 411.95, 366.85, P 值均<0.01); 近视组学生左眼的眼压值和平均角膜曲率均髙于非近视组, 差异均有统计学意义 ( t 值分别为 5.91, 10.22, P 值均<0.05)。 结论 徐州市沛县一至三年级近视率较低, 但 6 岁组已出现近视, 随着年龄和年级增长, 近视率不断 攀升。探寻有效可行的近视防控措施刻不容缓。

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          Author and article information

          Journal
          CJSH
          Chinese Journal of School Health
          Chinese Journal of School Health (China )
          1000-9817
          01 October 2021
          01 December 2021
          : 42
          : 10
          : 1564-1567
          Affiliations
          [1] 1Food Safety and School Health Department, Xuzhou Center for Disease Control and Prevention, Xuzhou (221004), Jiangsu Province, China
          Author notes
          *Corresponding authors: ZHANG Fengyun, E-mail: 434908934@ 123456qq.com ; ZHANG Xiyan, E-mail: 2407622173@ 123456qq.com
          Article
          j.cnki.1000-9817.2021.10.029
          10.16835/j.cnki.1000-9817.2021.10.029
          eff413ec-c841-4d15-a68f-d4dae47ab0d8
          © 2021 Chinese Journal of School Health

          This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 Unported License (CC BY-NC 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. See https://creativecommons.org/licenses/by-nc/4.0/.

          Product
          Self URI (journal-page): http://www.cjsh.org.cn
          Categories
          Journal Article

          Ophthalmology & Optometry,Pediatrics,Nutrition & Dietetics,Clinical Psychology & Psychiatry,Public health
          Myopia,Students,Cohort studies,Prevalence

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