Prevalence and related factors of children myopia in Pudong New Area, Shanghai: a cross-sectional study
Objectives This study aimed to assess the prevalence and related factors of myopia among school-aged children after COVID-19 pandemic.Design Cross-sectional study.Setting Pudong New Area, Shanghai.Participants 1722 children aged 7–9 randomly selected from 8 primary schools were screened from 1 Febru...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
BMJ Publishing Group
2023-12-01
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| Series: | BMJ Open |
| Online Access: | https://bmjopen.bmj.com/content/13/12/e079330.full |
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| Summary: | Objectives This study aimed to assess the prevalence and related factors of myopia among school-aged children after COVID-19 pandemic.Design Cross-sectional study.Setting Pudong New Area, Shanghai.Participants 1722 children aged 7–9 randomly selected from 8 primary schools were screened from 1 February 2023 to 30 April 2023.Main outcome measures Children’s height, weight and eye parameters were examined. Myopia was defined as a cycloplegic spherical equivalent ≤−0.50 dioptres in either eye. A vision-related behaviour questionnaire was applied to investigate the associations between myopia and its risk factors.Results Of the 1722 individuals enrolled, 25.6% (456) had myopia. After adjusting other characteristics, the following factors were associated with an increased rate of myopia: age (9 years vs 7 years, adjusted OR (AOR) 1.84, 95% CI 1.18 to 2.85, p=0.007), parental myopia status (both myopia vs none, AOR 5.66, 95% CI 3.71 to 8.63, p<0.001; one myopia vs none, AOR 2.92, 95% CI 1.93 to 4.42, p<0.001), reading books too close (yes vs no, AOR 1.58, 95% CI 1.20 to 2.08, p=0.001), writing with a tilted head (yes vs no, AOR 1.37, 95% CI 1.05 to 1.77, p=0.019), sleep patterns (early to bed late to rise vs early to bed early to rise, AOR 1.52, 95% CI 1.02 to 2.26, p=0.039). By contrast, a higher monthly household income and the habit of reading while lying down were associated with lower risk of myopia.Conclusions The prevalence of myopia is of concern among young school-aged children after COVID-19. Correcting eye use behaviour and improving sleep habits may reduce myopia. Also, gender differences should be considered in prevention strategies for children’s myopia. |
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| ISSN: | 2044-6055 |