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June 6, 2026Cancer MedicineOpen Access

Prevalence of Cancer Survivors in 2019 Among Patients Diagnosed Between 1975 and 2019: A Population‐Based Study in Japan

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Authors

HKHaruka KudoOsaka International Cancer InstituteKNKayo NakataOsaka International Cancer InstituteKKKenji KishimotoOsaka International Cancer Institute

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Overview

Population-based study estimates cancer survivors in Japan, indicating healthcare needs for aging populations.

Key Points

  • This study aims to estimate the prevalence and characteristics of cancer survivors in Japan, particularly long-term survivors.
  • Population-based study using data from the Osaka Cancer Registry, covering 8.8 million residents.
  • Identified individuals diagnosed with cancer between 1975 and 2019 who were alive in 2019.
  • Calculated national estimates by applying Osaka's prevalence proportions to the broader Japanese population.
  • In 2019, there were 461,489 cancer survivors in Osaka, representing 5.4% of the prefectural population.
  • 34% of survivors were long-term survivors (≥ 10 years post-diagnosis).
  • Nationally, an estimated 6.9 million individuals (5.5% of the Japanese population) were living post-cancer diagnosis.

Cite This Study

Kudo et al. (2026) studied this question.

synapsesocial.com/papers/6a23bb4471a5da9775e76cd6https://doi.org/10.1002/cam4.72012
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  5. 5Long-Term Trends and Disparities Among Cancer Types in Survival for Childhood Cancer: A Population-Based Study in Osaka, Japan, 1976-20152026