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April 3, 2026Scientific ReportsOpen Access

Nationwide trends in radiotherapy use among older patients with early-stage non-small cell lung cancer in Japan, 2013–2022

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Authors

TIToshiki IkawaKNKayo NakataKKKenji Kishimoto

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Overview

Analysis reveals increasing radiotherapy use in older patients with early-stage lung cancer, suggesting variations by age and treatment facility.

Key Points

  • The aim is to examine trends in radiotherapy use among older patients with early-stage non-small cell lung cancer in Japan from 2013 to 2022.
  • Analyzed hospital-based cancer registry data from 2013 to 2022
  • Included 295,662 patients aged 65 years and older with epithelial lung tumors
  • Used logistic regression to assess changes in radiotherapy use
  • Radiotherapy use increased from 10.5% in 2013 to 12.8% in 2022
  • Radiotherapy rates varied by age group: 6.2% for 65-74, 14.8% for 75-84, and 35.5% for ≥85
  • Surgery use decreased in certain age groups, dropping from 89.6% to 32.8% among those aged ≥ 85

Cite This Study

Ikawa et al. (2026) studied this question.

synapsesocial.com/papers/69cf5e2e5a333a821460c448https://doi.org/10.1038/s41598-026-44945-z
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