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The increasing prevalence of myopia and high myopia among high school students in Fenghua city, eastern China: a 15-year population-based survey
BACKGROUND: Myopia is the leading cause of preventable blindness in children and young adults. Multiple epidemiological studies have confirmed a high prevalence of myopia in Asian countries. However, fewer longitudinal studies have been performed to evaluate the secular changes in the prevalence of...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6029024/ https://www.ncbi.nlm.nih.gov/pubmed/29970057 http://dx.doi.org/10.1186/s12886-018-0829-8 |
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author | Chen, Min Wu, Aimin Zhang, Lina Wang, Wei Chen, Xinyi Yu, Xiaoning Wang, Kaijun |
author_facet | Chen, Min Wu, Aimin Zhang, Lina Wang, Wei Chen, Xinyi Yu, Xiaoning Wang, Kaijun |
author_sort | Chen, Min |
collection | PubMed |
description | BACKGROUND: Myopia is the leading cause of preventable blindness in children and young adults. Multiple epidemiological studies have confirmed a high prevalence of myopia in Asian countries. However, fewer longitudinal studies have been performed to evaluate the secular changes in the prevalence of myopia, especially high myopia in China. In the present study, we investigated trends in the prevalence of myopia among high school students in Fenghua city, eastern China, from 2001 to 2015. METHODS: This was a population-based, retrospective study. Data were collected among 43,858 third-year high school students. Noncycloplegic autorefraction was used to determine refractive error, which was defined as low myopia, moderate myopia, high myopia and very high myopia according to the spherical equivalent from the worse eye of each participant. The prevalence of myopia was calculated and the annual percentage change (APC) was used to quantify the time trends. All analyses were conducted using the SPSS, Stata and Graphpad Prism software. RESULTS: From 2001 to 2015, the prevalence of overall myopia increased from 79.5% to 87.7% (APC =0.59%), with a significant increase of moderate myopia (38.8% to 45.7%, APC = 0.78%), high myopia (7.9% to 16.6%, APC = 5.48%) and very high myopia (0.08% to 0.92%, APC = 14.59%), while the prevalence of low myopia decreased from 32.7% to 24.4% (APC = − 1.73%). High myopia and very high myopia contributed the major part of the increasing trend of myopia prevalence (contribution rate 27.00% and 69.07%, respectively). CONCLUSIONS: During the 15-year period, there was a remarkable increase in the prevalence of high and very high myopia among high school students, which might become a serious public health problem in China for the next few decades. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1186/s12886-018-0829-8) contains supplementary material, which is available to authorized users. |
format | Online Article Text |
id | pubmed-6029024 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-60290242018-07-09 The increasing prevalence of myopia and high myopia among high school students in Fenghua city, eastern China: a 15-year population-based survey Chen, Min Wu, Aimin Zhang, Lina Wang, Wei Chen, Xinyi Yu, Xiaoning Wang, Kaijun BMC Ophthalmol Research Article BACKGROUND: Myopia is the leading cause of preventable blindness in children and young adults. Multiple epidemiological studies have confirmed a high prevalence of myopia in Asian countries. However, fewer longitudinal studies have been performed to evaluate the secular changes in the prevalence of myopia, especially high myopia in China. In the present study, we investigated trends in the prevalence of myopia among high school students in Fenghua city, eastern China, from 2001 to 2015. METHODS: This was a population-based, retrospective study. Data were collected among 43,858 third-year high school students. Noncycloplegic autorefraction was used to determine refractive error, which was defined as low myopia, moderate myopia, high myopia and very high myopia according to the spherical equivalent from the worse eye of each participant. The prevalence of myopia was calculated and the annual percentage change (APC) was used to quantify the time trends. All analyses were conducted using the SPSS, Stata and Graphpad Prism software. RESULTS: From 2001 to 2015, the prevalence of overall myopia increased from 79.5% to 87.7% (APC =0.59%), with a significant increase of moderate myopia (38.8% to 45.7%, APC = 0.78%), high myopia (7.9% to 16.6%, APC = 5.48%) and very high myopia (0.08% to 0.92%, APC = 14.59%), while the prevalence of low myopia decreased from 32.7% to 24.4% (APC = − 1.73%). High myopia and very high myopia contributed the major part of the increasing trend of myopia prevalence (contribution rate 27.00% and 69.07%, respectively). CONCLUSIONS: During the 15-year period, there was a remarkable increase in the prevalence of high and very high myopia among high school students, which might become a serious public health problem in China for the next few decades. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1186/s12886-018-0829-8) contains supplementary material, which is available to authorized users. BioMed Central 2018-07-03 /pmc/articles/PMC6029024/ /pubmed/29970057 http://dx.doi.org/10.1186/s12886-018-0829-8 Text en © The Author(s). 2018 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated. |
spellingShingle | Research Article Chen, Min Wu, Aimin Zhang, Lina Wang, Wei Chen, Xinyi Yu, Xiaoning Wang, Kaijun The increasing prevalence of myopia and high myopia among high school students in Fenghua city, eastern China: a 15-year population-based survey |
title | The increasing prevalence of myopia and high myopia among high school students in Fenghua city, eastern China: a 15-year population-based survey |
title_full | The increasing prevalence of myopia and high myopia among high school students in Fenghua city, eastern China: a 15-year population-based survey |
title_fullStr | The increasing prevalence of myopia and high myopia among high school students in Fenghua city, eastern China: a 15-year population-based survey |
title_full_unstemmed | The increasing prevalence of myopia and high myopia among high school students in Fenghua city, eastern China: a 15-year population-based survey |
title_short | The increasing prevalence of myopia and high myopia among high school students in Fenghua city, eastern China: a 15-year population-based survey |
title_sort | increasing prevalence of myopia and high myopia among high school students in fenghua city, eastern china: a 15-year population-based survey |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6029024/ https://www.ncbi.nlm.nih.gov/pubmed/29970057 http://dx.doi.org/10.1186/s12886-018-0829-8 |
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