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    Identifying Children at Risk of High Myopia Using Population Centile Curves of Refraction

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    11
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    Author
    Chen, Y; Zhang, J; Morgan, IG; He, M
    Date
    2016-12-28
    Source Title
    PLoS One
    Publisher
    PUBLIC LIBRARY SCIENCE
    University of Melbourne Author/s
    He, Mingguang
    Affiliation
    Ophthalmology (Eye & Ear Hospital)
    Metadata
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    Document Type
    Journal Article
    Citations
    Chen, Y., Zhang, J., Morgan, I. G. & He, M. (2016). Identifying Children at Risk of High Myopia Using Population Centile Curves of Refraction. PLOS ONE, 11 (12), https://doi.org/10.1371/journal.pone.0167642.
    Access Status
    Open Access
    URI
    http://hdl.handle.net/11343/257548
    DOI
    10.1371/journal.pone.0167642
    Abstract
    PURPOSE: To construct reference centile curves of refraction based on population-based data as an age-specific severity scale to evaluate their efficacy as a tool for identifying children at risk of developing high myopia in a longitudinal study. METHODS: Data of 4218 children aged 5-15 years from the Guangzhou Refractive Error Study in Children (RESC) study, and 354 first-born twins from the Guangzhou Twin Eye Study (GTES) with annual visit were included in the analysis. Reference centile curves for refraction were constructed using a quantile regression model based on the cycloplegic refraction data from the RESC. The risk of developing high myopia (spherical equivalent ≤ -6 diopters [D]) was evaluated as a diagnostic test using the twin follow-up data. RESULTS: The centile curves suggested that the 3rd, 5th, and 10th percentile decreased from -0.25 D, 0.00 D and 0.25 D in 5 year-olds to -6.00 D, -5.65D and -4.63 D in 15 year-olds in the population-based data from RESC. In the GTES cohort, the 5th centile showed the most effective diagnostic value with a sensitivity of 92.9%, a specificity of 97.9% and a positive predictive value (PPV) of 65.0% in predicting high myopia onset (≤-6.00D) before the age of 15 years. The PPV was highest (87.5%) in 3rd centile but with only 50.0% sensitivity. The Mathew's correlation coefficient of 5th centile in predicting myopia of -6.0D/-5.0D/-4.0D by age of 15 was 0.77/0.51/0.30 respectively. CONCLUSIONS: Reference centile curves provide an age-specific estimation on a severity scale of refractive error in school-aged children. Children located under lower percentiles at young age were more likely to have high myopia at 15 years or probably in adulthood.

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