Myopia prevalence among primary school students across different districts in Guangzhou: insights from a large-scale school-based screening.

BMC Public Health · 2025 · PMC12560431 · PMID 41146116

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a clear trendno p-value reported

A clear trend of escalating myopia prevalence with advancing grade level, especially around the transition from lower to upper primary grades.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.