Existing lung screening criteria miss nearly two-thirds of lung cancers in Korean study

65% of lung cancer patients diagnosed in South Korea from 2013-2018 would not have qualified for screening under international guidelines, missing many never-smokers and women, a JAMA Network Open study found.

• 44% of patients had no smoking history.
• Screening eligibility differed sharply by sex (57% men vs. 2.3% women).
• The findings highlight the need to reconsider risk-based screening that excludes never-smokers, especially in Asian populations.

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