Key result
Advanced lung cancer is linked to being under 50, male, smoking, and uninsured or on Medicaid.
Why the study?
Lung cancer burden is rising among populations that often present with advanced disease and may not qualify for USPSTF screening, prompting evaluation of demographic, behavioral, and socioeconomic associations with stage at diagnosis.
Population
6,446 adults diagnosed with lung cancer
Comparison
Associations of age, smoking status, race, sex, and insurance status with early vs advanced stage at diagnosis
Design
Retrospective cross-sectional study
Authors
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Warrants targeted early detection in vulnerable groups to mitigate diagnostic disparities; extends observational evidence on inequities but leaves open effective interventions.
Younger adults, males, current smokers, and patients on Medicaid or without insurance are more likely to present with advanced lung cancer, highlighting significant disparities in diagnosis.
Abar et al. (2026) studied this question. Advanced-stage lung cancer was significantly more common among patients under 50 (77%), men (64%), current smokers (66%), and those with Medicaid (78%) or no insurance (65%).
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