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      Analysis of myopia related factors among primary and secondary school students in Shanghai

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          Abstract

          Objective To analyze myopia related factors among students in Shanghai, to explore associated risky behaviors associated with mild, moderate, high myopia, so as to provide the evidence for the implementation of home and school combination intervention measures.

          Methods Six primary and secondary schools (2 primary schools, 2 middle schools and 2 high schools) were selected from each district of Shanghai. The primary schools began to investigate from the fourth grade. All the students in the selected classes participated in the vision test and questionnaire survey. Chi square test was used for categorical data analysis. The relationship between myopia and related behaviors was analyzed by multivariate Logistic analysis.

          Results The prevalence of visual-related risky behaviors such as short outdoor time during the day, lack of sleep, long after-school reading and writing time, poor reading and writing posture, and longtime-using mobile electronic screen was higher in girls than in boys ( P<0.05), boys were more likely than girls to use computer for long time and read books/electronic screen in sunlight ( P<0.05). The group with 3 hours or more than of reading and writing compared with the less than 2 hours, the OR value of mild myopia model was 1.31(1.20-1.44), moderate myopia model was 1.78(1.62-1.96), severe myopia model was 2.37(2.07-2.71). In the model of moderate and high myopia, reading and writing posture, frequency of eye relax, outdoor activity time and watching TV time were also included.

          Conclusion The prevalence of myopia related behaviors among primary and secondary school students is high, and there are significant gender differences among different behaviors. Students’ reading and writing time should be strictly controlled after school. Intervention strategies and measures should be carried out according to the characteristics of different ages and genders.

          Abstract

          【摘要】 目的 了解上海市学生近视相关因素并探寻轻、中、高度近视可干预的主要行为, 为实施家校结合和针对性的干 预措施提供依据。 方法 在上海市各区分别抽取6所中小学校(2所小学、2所初中、2所高中), 小学从四年级开始调查, 抽到的班级全体学生共24 434名参与视力检测和问卷调查。数据分析组间比较选择妒检验, 不同程度近视与用眼相关行 为关联分析采用多分类多因素Logistic回归分析。 结果 白天户外活动时间短、睡眠缺乏、课后读写时间长、读写姿势差、 使用移动电子屏时间过长等视力相关的不良行为女生发生率高于男生, 而用电脑时间长、阳光下看书/电子屏等行为男生 发生率高于女生 ( P值均<0.05)。课后读写时间為3h与<2h相比, 轻度近视模型 OR值为1.31(95% CI =1.20〜1.44)、中度 近视模型 OR值为1.78(95% CI =1.62〜1.96)、高度近视模型 OR值为2.37(95% CI = 2.07〜2.71);在中、高度近视的模型中 有影响的行为还有读写姿势、近距离用眼休息频次、户外活动时间、看电视时间 ( P值均<0.05)。 结论 中小学生近视的相 关不良行为发生率较高, 不同行为之间性别差异明显。应严格控制学生课后读写时间, 干预的策略和措施应针对不同年龄 和性别的特点开展。

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          Author and article information

          Journal
          CJSH
          Chinese Journal of School Health
          Chinese Journal of School Health (China )
          1000-9817
          01 February 2021
          01 February 2021
          : 42
          : 2
          : 185-189
          Affiliations
          [1] 1 Department of Psychological and Behavioral Health, Institute of Child and Adolescent Health, Shanghai Municipal Center for Disease Control and Prevention, Shanghai (200336), China
          Author notes
          *Corresponding author: FENG Xiaogang, E-mail: fengxiaogang@ 123456scdc.sh.cn
          Article
          j.cnki.1000-9817.2021.02.007
          10.16835/j.cnki.1000-9817.2021.02.007
          352f284f-e13f-430c-8705-13a3514eb50d
          © 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/.

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

          Ophthalmology & Optometry,Pediatrics,Nutrition & Dietetics,Clinical Psychology & Psychiatry,Public health
          Vision, low,Myopia,Students,Behavior,Regression analysis

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