Global and regional estimates of prevalence of refractive errors: Systematic review and meta-analysis.

J Curr Ophthalmol · 2018 · PMC5859285 · PMID 29564404

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a significant trendno p-value reported

According to our results, astigmatism and hyperopia did not have a significant trend in the past three decades.

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a decreasing trendno p-value reported

As mentioned earlier, although the trend of hyperopia was not significant, the prevalence of hyperopia had a decreasing trend from 1990 to 2016 with a regression coefficient similar to myopia.

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an increasing trendno p-value reported

Our results showed that the prevalence of myopia had an increasing trend in the past three decades.

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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.