Annual Trend of Myopia and High Myopia in Children in Japan: A Nationwide Claims Database Study

• DOI: 10.1016/j.xops.2025.100729
• Publication Date: 2025-02-03T07:24:04Z
• Authors: Takuro Kamei; Masahiro Miyake; Ai Kido; Saori Wada; Shusuke Hiragi; Masayuki Hata; Masahiro Akada; Koji Niimi; Ken Ogino; Akio Oishi; Akihiro Nishida; Hiroshi Tamura; Akitaka Tsujikawa

To determine the prevalence and annual trend of number incident cases myopia high in children. A nationwide, comprehensive claims database study. Of 15 million children aged ≤14 years, those covered by universal health insurance were included. The validation study claims-based definitions was conducted using 14 654 individuals years recruited from 11 diverse medical facilities. This comprises a national analysis multicenter Data National Database Health Insurance Claims Specific Checkups Japan, which contains nationwide data, assessed. All reviewed, with existing new onset or between January 2011 December 2020 identified. reviewing electric records. Prevalence as October 1, 2020, during 2014 to 2020. According population census, there 955 692 years. Among them, 5 498 764 patients had on corresponding 36.8%. highest at 8 age, increasing 853.3 cases/person-year 2015 910.7 increased peaking 0.46% among 10 years; annually 5- 9-year-olds 10- 14-year-olds. In year when coronavirus disease 2019 pandemic occurred, discontinuous increase observed not 12 overall sensitivity specificity definition for 88.5% 79.2%, respectively, whereas values 41.6% 99.8%. first revealed incidence trends myopia. These findings complement results previous high-quality cohort studies, offering more understanding trends. Proprietary commercial disclosure may be found Footnotes Disclosures end this article.