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

Citation

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, Time spent outdoors in childhood is associated with reduced risk of myopia as an adult, Scientific Reports, 11, (1) pp. 1-11. ISSN 2045-2322 (2021) [Refereed Article]


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

DOI: doi:10.1038/s41598-021-85825-y

Abstract

Myopia (near-sightedness) is an important public health issue. Spending more time outdoors can prevent myopia but the long-term association between this exposure and myopia has not been well 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 Adult Myopia Study (KYAMS) was a follow-up of the Kidskin Study, a sun exposure-intervention study of 1776 children aged 612 years. Myopia status was assessed in 303 (17.6%) KYAMS participants (aged 2530 years) and several subjective and objective measures of time spent outdoors were collected in childhood (812 years) and adulthood. Index measures of total, childhood and recent time spent outdoors were developed using confrmatory factor analysis. Logistic regression was used to assess the association between a 0.1-unit change in the time outdoor indices and risk of myopia after adjusting for sex, education, outdoor occupation, parental myopia, parental education, ancestry and Kidskin Study intervention group. Spending more time outdoors during childhood was associated with reduced risk of myopia in young adulthood (multivariable odds ratio [OR] 0.82, 95% confdence interval [CI] 0.69, 0.98). Spending more time outdoors in later adolescence and young adulthood was associated with reduced risk of late-onset myopia (≥15 years of age, multivariable OR 0.79, 95% CI 0.64, 0.98). Spending more time outdoors in both childhood and adolescence was associated with less myopia in young adulthood.

Item Details

Item Type:Refereed Article
Research Division:Biomedical and Clinical Sciences
Research Group:Ophthalmology and optometry
Research Field:Ophthalmology
Objective Division:Health
Objective Group:Evaluation of health and support services
Objective Field:Determinants of health
UTAS Author:Hewitt, AW (Professor Alex Hewitt)
ID Code:147113
Year Published:2021
Web of Science® Times Cited:2
Deposited By:Menzies Institute for Medical Research
Deposited On:2021-10-13
Last Modified:2021-11-10
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