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Data were collected from claims and reimbursement records of the Health Insurance Review and Assessment Service (HIRA) between 2017 and 2020 using initial diagnostic codes. Modalities evaluated included 2D radiotherapy, 3D conformal radiotherapy, intensity-modulated radiotherapy, proton radiotherapy and stereotactic body radiotherapy. Results show declining 2D and 3D use and rising intensity-modulated use, with increased advanced modality adoption and higher utilization in major cancer patients than in all cancers.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":35,"@type":76,"position":81},"https://docshare.wps.com/document/healthcare/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/recent-trends-in-radiotherapy-use-for-major-cancers-in-korea/377444/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/recent-trends-in-radiotherapy-use-for-major-cancers-in-korea/377444.png","ImageObject",300,407,{"name":92,"@type":93},"Anna Hans","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-29","2026-09-24",true,{"@type":102,"interactionType":103,"userInteractionCount":44},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What was the study’s main goal?","Question",{"text":112,"@type":113},"To analyze radiotherapy patterns and modality changes for major cancers in Korea in recent years.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"Which data sources and years were used for the analysis?",{"text":117,"@type":113},"Claims and reimbursement records from HIRA were analyzed for 2017 to 2020 using initial diagnostic codes.",{"name":119,"@type":110,"acceptedAnswer":120},"How did radiotherapy modalities change from 2017 to 2020?",{"text":121,"@type":113},"Use of two-dimensional and three-dimensional conformal radiotherapy decreased, while intensity-modulated radiotherapy increased.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},377444,1790342348,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":34,"category_name":35,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":44,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":29,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":143,"read_time":144},5909892332657,"https://ap-avatar.wpscdn.com/davatar_994ba38a5ba835b3df7d355c54d3ed8d","Japanese Journal of Clinical Oncology, 2023, 53(12), 1177–1182  \n[https://doi.org/10.1093/jjco/hyad106](https://doi.org/10.1093/jjco/hyad106)  \nAdvance Access Publication Date: 19 August 2023 Original Article  \nOriginal Article  \nRecent trends in radiotherapy use for major cancers in Korea  \nKyungmi Yang1 , Jeong Eun Lee2 , *, Won Park1 ,3 , *, Yong Chan Ahn 1 and Seung Jae Huh3  \n1 Department of Radiation Oncology, Samsung Medical Center, School of Medicine, Sungkyunkwan University, Seoul, Korea, 2 Departments of Radiation Oncology, School of Medicine, Kyungpook National University, Daegu, Korea and 3 Healthcare Review and Assessment Committee, Health Insurance Review and Assessment Service, Seoul, Korea  \n*For reprints and all correspondence: Jeong Eun Lee, Department of Radiation Oncology, School of Medicine, Kyungpook National University, 807 Hoguk-ro, Buk-gu, Daegu 41404, Korea. E-mail: [jelee@knu.ac.kr](jelee@knu.ac.kr); Won Park, Department of Radiation Oncology, Samsung Medical Center, School of Medicine, Sungkyunkwan University, 81 Irwon-ro, Gangnam-gu,  \nSeoul 06351, [Korea. E-mail: wonro.park@samsung.com](Korea. E-mail: wonro.park@samsung.com)  \nReceived 21 April 2023; Editorial Decision 2 August 2023; Accepted 3 August 2023  \nAbstract  \nBackground: Although the trend in radiotherapy in all cancer patients has been studied, changes in radiotherapy modalities for specific cancer types have not been reported. This study aimed to analyze radiotherapy patterns for major cancers in Korea in recent years.  \nMaterials and Methods: We collected data from claims and reimbursement records of the Health and Insurance Review and Assessment Service from 2017 to 2020, according to initial diagnostic codes. The radiotherapy modalities for major cancers, such as lung, stomach, colorectal, breast and liver cancer, were analyzed. The radiotherapy modalities consisted of two-dimensional radiotherapy, three-dimensional conformal radiotherapy, intensity-modulated radiotherapy, proton radiotherapy and stereotactic body radiotherapy.  \nResults: Overall, from 2017 to 2020, the use of two-dimensional radiotherapy and threedimensional conformal radiotherapy decreased, and intensity-modulated radiotherapy increased. In 2017, three-dimensional conformal radiotherapy accounted for approximately half of the radiotherapy in patients for lung and colorectal cancer, which was replaced by intensity-modulated radiotherapy in 2020 . In 2020, stereotactic body radiotherapy also accounted for a large proportion of radiotherapy used in liver cancer cases. Intensity-modulated radiotherapy was most used, followed by three-dimensional conformal radiotherapy and two-dimensional radiotherapy for breast cancer in 2020 . Among major cancers, radiotherapy utilization for breast cancer is the highest. Compared with other cancers, the number of patients receiving radiotherapy for stomach cancer was low.  \nConclusion: The number of patients receiving radiotherapy for major cancers has increased. The use of advanced forms of radiotherapy, such as intensity-modulated radiotherapy, is rapidly increasing for major cancers. The rate of radiotherapy utilization was higher in major cancer patients than in all cancer patients.  \nKey words: radiotherapy, lung cancer, breast cancer, liver cancer, Korea  \n© The Author(s) 2023 . Published by Oxford University Press. All rights reserved. For permissions, please e-mail: [journals.permission@oup.com](journals.permission@oup.com).  \nThis is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ([http://creativecommons.org/licenses/by-nc/4.0/](http://creativecommons.org/licenses/by-nc/4.0/)),  \nwhich permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, 1177  \nplease [contact journals.permissions@oup.com](contact journals.permissions@oup.com)  \nIntroduction  \nCancer is one of the leading","cbCaijizfzGqzVyN","https://ap.wps.com/l/cbCaijizfzGqzVyN","pdf",780236,"English","# Abstract\n## Background\n## Materials and Methods\n## Results\n## Conclusion\n# Introduction\n# Methods","[{\"question\":\"What was the study’s main goal?\",\"answer\":\"To analyze radiotherapy patterns and modality changes for major cancers in Korea in recent years.\"},{\"question\":\"Which data sources and years were used for the analysis?\",\"answer\":\"Claims and reimbursement records from HIRA were analyzed for 2017 to 2020 using initial diagnostic codes.\"},{\"question\":\"How did radiotherapy modalities change from 2017 to 2020?\",\"answer\":\"Use of two-dimensional and three-dimensional conformal radiotherapy decreased, while intensity-modulated radiotherapy increased.\"}]","Recent trends in radiotherapy use for major cancers in Korea | PDF",1790224977,15]