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Getting the latest healthcare news for you
A large analysis of nearly 13 million U.S. death certificates found that flight attendants and pilots have the highest and second-highest rates of radiation-related cancer deaths among 503 occupations studied. Flight attendants had 50% higher odds and pilots had 36% higher odds of dying from these cancers compared to other workers. Researchers say the findings support stronger occupational radiation protections for aircrew — though causality hasn't been proven.
A sweeping analysis of nearly 13 million U.S. death certificates (2020–2024), published in JAMA Internal Medicine, found that flight attendants and pilots rank #1 and #2, respectively, among 503 occupations for radiation-related cancer mortality. Compared to other workers, flight attendants had 50% higher odds and pilots had 36% higher odds of dying from cancers potentially linked to radiation exposure — including breast, CNS, prostate, and melanoma. Notably, neither group showed elevated risk for non-radiation-related cancers, and ground-based aviation workers (mechanics and assemblers) showed no excess risk at all, lending further weight to the occupational radiation hypothesis.
Researchers used aircraft mechanics as a negative control and nuclear technologists as a positive control, and the results held up across both sexes. That said, the study cannot definitively attribute the excess mortality to cosmic radiation alone — other factors like UV-A exposure, circadian disruption, and unmeasured lifestyle variables may also contribute.
Key Takeaways:
Why it matters: This is the largest study to date linking aircrew work to cancer mortality (not just incidence), and it raises important questions about whether the U.S. should implement radiation monitoring and dose limits for pilots and flight attendants — protections already in place for other radiation-exposed workers.
