{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,25]],"date-time":"2026-10-25T21:29:36Z","timestamp":1792963776327,"version":"4.5.0"},"reference-count":48,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2024,1,22]],"date-time":"2024-01-22T00:00:00Z","timestamp":1705881600000},"content-version":"vor","delay-in-days":21,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100004826","name":"Natural Science Foundation of Beijing Municipality","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100004826","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100001547","name":"China Medical Board","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100001547","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Scandinavian Med Sci Sports"],"published-print":{"date-parts":[[2024,1]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Overweight and obesity (OWOB) and myopia have become two of the most important issues affecting the health of children and adolescents worldwide. Despite the recognition that the school physical activity (PA) environment is a critical factor for preventing and controlling overweight, obesity (OWOB), and myopia in children and adolescents, research on OWOB and myopia as a comorbidity remains unexplored, with evidence for effective strategies still being inconclusive. Hence, this study aimed to assess the prevalence and progression of comorbid OWOB\/myopia and each condition alone, and to explore the association with school PA environment.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>A total of 9814 children and adolescents aged 6\u201318\u2009years were included from the Chinese National Survey on Students' Constitution and Health follow\u2010up survey conducted from November 2019 to November 2020 in China. Anthropometric measurements, unaided distance vision acuity and non\u2010cycloplegic refraction data were collected to assess OWOB and myopia, while eight indicators from questionnaires for children and adolescents aged 9\u201318\u2009years were investigated to assess school PA environment. We calculated the one\u2010year incidence and progression rates of comorbid OWOB\/myopia, OWOB alone, and myopia alone. Mixed effect logistic regression was evaluated the association between school PA environment and incidence and progression of comorbid OWOB\/myopia, OWOB, and myopia.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The prevalence of comorbid OWOB\/myopia increased from 11.1% in 2019 to 17.9% in 2020, and the incidence of comorbid OWOB\/myopia was 10.9%. Children and adolescents experiencing an unfavorable school PA environment had a higher risk of the incidence of comorbid OWOB\/myopia compared to a favorable school environment (OR\u2009=\u20091.85, 95% CI: 1.42\u20132.42). Similar findings were seen in the incidence of obesity (OR\u2009=\u20091.86, 95% CI: 1.26\u20132.75). Children and adolescents in an unfavorable school PA environment had a higher risk of myopia progression (OR\u2009=\u20091.29, 95% CI: 1.01\u20131.65).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Obesity and myopia and their comorbidity have been serious among children and adolescents in China. A favorable school PA environment might mitigate the risk of comorbid OWOB\/myopia, OWOB, and myopia progression.<\/jats:p><\/jats:sec>","DOI":"10.1111\/sms.14562","type":"journal-article","created":{"date-parts":[[2024,1,23]],"date-time":"2024-01-23T05:01:18Z","timestamp":1705986078000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":18,"title":["Associations of school physical activity environment with comorbid obesity and myopia in children and adolescents: Findings from a Chinese national follow\u2010up study"],"prefix":"10.1111","volume":"34","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7656-2518","authenticated-orcid":false,"given":"Jiajia","family":"Dang","sequence":"first","affiliation":[{"name":"Institute of Child and Adolescent Health, School of Public Health Peking University  Beijing China"},{"name":"National Health Commission Key Laboratory of Reproductive Health  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6876-5558","authenticated-orcid":false,"given":"Shan","family":"Cai","sequence":"additional","affiliation":[{"name":"Institute of Child and Adolescent Health, School of Public Health Peking University  Beijing China"},{"name":"National Health Commission Key Laboratory of Reproductive Health  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Panliang","family":"Zhong","sequence":"additional","affiliation":[{"name":"Institute of Child and Adolescent Health, School of Public Health Peking University  Beijing China"},{"name":"National Health Commission Key Laboratory of Reproductive Health  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yunfei","family":"Liu","sequence":"additional","affiliation":[{"name":"Institute of Child and Adolescent Health, School of Public Health Peking University  Beijing China"},{"name":"National Health Commission Key Laboratory of Reproductive Health  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Di","family":"Shi","sequence":"additional","affiliation":[{"name":"Institute of Child and Adolescent Health, School of Public Health Peking University  Beijing China"},{"name":"National Health Commission Key Laboratory of Reproductive Health  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ziyue","family":"Chen","sequence":"additional","affiliation":[{"name":"Institute of Child and Adolescent Health, School of Public Health Peking University  Beijing China"},{"name":"National Health Commission Key Laboratory of Reproductive Health  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Manman","family":"Chen","sequence":"additional","affiliation":[{"name":"Institute of Child and Adolescent Health, School of Public Health Peking University  Beijing China"},{"name":"National Health Commission Key Laboratory of Reproductive Health  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yanhui","family":"Dong","sequence":"additional","affiliation":[{"name":"Institute of Child and Adolescent Health, School of Public Health Peking University  Beijing China"},{"name":"National Health Commission Key Laboratory of Reproductive Health  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jun","family":"Ma","sequence":"additional","affiliation":[{"name":"Institute of Child and Adolescent Health, School of Public Health Peking University  Beijing China"},{"name":"National Health Commission Key Laboratory of Reproductive Health  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yi","family":"Song","sequence":"additional","affiliation":[{"name":"Institute of Child and Adolescent Health, School of Public Health Peking University  Beijing China"},{"name":"National Health Commission Key Laboratory of Reproductive Health  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Patrick W. 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