Dataset Information

The associations of high academic performance with childhood ametropia prevalence and myopia development in China.

ABSTRACT:

Background

To assess associations of high academic performance with ametropia prevalence and myopia development in Chinese schoolchildren.

Methods

This multicohort observational study was performed in Guangdong, China. We first performed a cross-sectional cohort analysis of students in grades 1 to 9 from Yangjiang to evaluate the relationship between academic performance and refractive status on a yearly basis. We also performed longitudinal analyses of students in Shenzhen to evaluate the trend of academic performance with refractive changes over a period of 33 months. All refractive statuses were measured using noncycloplegic autorefractors.

Results

A total of 32,360 children with or without myopia were recruited in this study (mean age 10.08 years, 18,360 males and 14,000 females). Cross-sectional cohort analyses in Yangjiang showed that the prevalence of hyperopia was associated with lower academic scores in grade one, the year students entered primary school (β=-0.04, P=0.01), whereas the prevalence of myopia was associated with higher academic scores in grade six and grade eight, the years in which students were about to take entrance examinations for junior high school or senior high school (β=0.020, P=0.038; β=0.041, P=0.002). Longitudinal analysis showed that in Shenzhen, faster myopia development was associated with better scores in all grades even after adjustments for BMI, outdoor activity time, screen time, reading time, and parental myopia (grade two at baseline: β=0.026, P<0.001; grade three at baseline: β=0.036, P=0.001; grade four at baseline: β=0.014, P<0.001; grade five at baseline: β=0.039, P<0.001; grade six at baseline: β=0.04, P<0.001).

Conclusions

Refractive errors correlated significantly with academic performance among schoolchildren in China. Children with high academic performance were more likely to have faster myopia development.

SUBMITTER: Yang Y

PROVIDER: S-EPMC8246175 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature

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Publications

The associations of high academic performance with childhood ametropia prevalence and myopia development in China.

Yang Yahan Y Li Ruiyang R Ting Daniel D Wu Xiaohang X Huang Jialing J Zhu Yi Y Chen Chuan C Lin Bingsen B Li Sijin S Zhang Xinliang X Chen Kexin K Yu Tongyong T Wu Dongxuan D Mo Zijun Z Wang Hongxi H Li Shiqun S Lin Haotian H

Annals of translational medicine 20210501 9

<h4>Background</h4>To assess associations of high academic performance with ametropia prevalence and myopia development in Chinese schoolchildren.<h4>Methods</h4>This multicohort observational study was performed in Guangdong, China. We first performed a cross-sectional cohort analysis of students in grades 1 to 9 from Yangjiang to evaluate the relationship between academic performance and refractive status on a yearly basis. We also performed longitudinal analyses of students in Shenzhen to eva ...[more]

PMID: 34268358

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Project description:BackgroundMyopia rates have risen in the past decades in China. New strategies for the prevention and control of myopia are now available, and understanding the prevalence and future trends in myopia and high myopia in children and adolescents in China may provide insights into the impact of implementing these measures. The study aims to provide updated data on the prevalence of myopia and high myopia in children and to project temporal trends in prevalence from 2020 to 2050 in China.MethodsA systematic review and meta-analysis searching several databases in both English and Chinese: PubMed, Web of Science, Science Direct, China National Knowledge Infrastructure (CNKI), Wanfang, China Science and Technology Journal Database (CSTJ) with date limits from 01/01/2010 to 11/23/2024 was conducted. We included population-based or school-based studies in China that determined the myopia prevalence, based on the cycloplegic refraction, in children under 20. Studies with a response rate <70% or sample size <200 were excluded. A fixed-effect meta-analysis was used, and projections were made based on three scenarios: experience-based, maximum growth (maximum near-work, minimal outdoor time), and minimum growth (2 h outdoor time daily).FindingsFrom 6555 reports, 82 studies with 218,794 participants were included. The overall myopia prevalence was 36.6% (95% CI: 36.4%, 36.8%), with rates of 2.6% in ages 0-4, 22.0% in ages 5-9, 45.4% in ages 10-14, and 67.2% in ages 15-19. High myopia prevalence was 5.3% overall, with rates of 0.1% in ages 0-4, 1.1% in ages 5-9, 3.0% in ages 10-14, and 9.5% in ages 15-19. Projections for 2030 under minimum growth, experience-based, and maximum growth scenarios were 26.8%, 46.2%, 56.0%; 2040 were 19.6%, 54.4%, 65.6%; and 2050 were 14.4%, 61.3%, 71.9%, respectively.InterpretationChina is facing a substantial and potentially worsening epidemic of childhood myopia. This information will provide data for guiding implementation and evaluating the effectiveness of existing and new nationwide myopia prevention and control programs.FundingThe Science and Technology Innovation Program of Hunan Province, China (2023RC1079, 2024RC5002).

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Dataset Information

The associations of high academic performance with childhood ametropia prevalence and myopia development in China.

Background

Methods

Results

Conclusions

Publications

The associations of high academic performance with childhood ametropia prevalence and myopia development in China.

Similar Datasets

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