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Time spent outdoors in childhood is associated with reduced risk of myopia as an adult

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Lingham, G, Yazar, S, Lucas, RM, Milne, E, Hewitt, AW ORCID: 0000-0002-5123-5999, Hammond, CJ, MacGregor, S, Rose, KA, Chen, FK, He, M, Guggenheim, JA, Clarke, MW, Saw, SM, Williams, C, Coroneo, MT, Straker, L and Mackey, DA 2021 , 'Time spent outdoors in childhood is associated with reduced risk of myopia as an adult' , Scientific Reports, vol. 11, no. 1 , pp. 1-11 , doi: 10.1038/s41598-021-85825-y.

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Abstract

Myopia (near-sightedness) is an important public health issue. Spending more time outdoors canprevent myopia but the long-term association between this exposure and myopia has not beenwell characterised. We investigated the relationship between time spent outdoors in childhood,adolescence and young adulthood and risk of myopia in young adulthood. The Kidskin Young AdultMyopia Study (KYAMS) was a follow-up of the Kidskin Study, a sun exposure-intervention study of1776 children aged 6–12 years. Myopia status was assessed in 303 (17.6%) KYAMS participants (aged25–30 years) and several subjective and objective measures of time spent outdoors were collectedin childhood (8–12 years) and adulthood. Index measures of total, childhood and recent time spentoutdoors were developed using confrmatory factor analysis. Logistic regression was used to assessthe association between a 0.1-unit change in the time outdoor indices and risk of myopia afteradjusting for sex, education, outdoor occupation, parental myopia, parental education, ancestry andKidskin Study intervention group. Spending more time outdoors during childhood was associatedwith reduced risk of myopia in young adulthood (multivariable odds ratio [OR] 0.82, 95% confdenceinterval [CI] 0.69, 0.98). Spending more time outdoors in later adolescence and young adulthood wasassociated with reduced risk of late-onset myopia (≥15 years of age, multivariable OR 0.79, 95% CI0.64, 0.98). Spending more time outdoors in both childhood and adolescence was associated with lessmyopia in young adulthood.

Item Type: Article
Authors/Creators:Lingham, G and Yazar, S and Lucas, RM and Milne, E and Hewitt, AW and Hammond, CJ and MacGregor, S and Rose, KA and Chen, FK and He, M and Guggenheim, JA and Clarke, MW and Saw, SM and Williams, C and Coroneo, MT and Straker, L and Mackey, DA
Journal or Publication Title: Scientific Reports
Publisher: Nature Publishing Group
ISSN: 2045-2322
DOI / ID Number: 10.1038/s41598-021-85825-y
Copyright Information:

Copyright 2021 the authors. Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/

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