The United States' Early Experience With Lung Cancer Screening-Creation of a National Data Linkage: A Brief Report.

Introduction: Lung cancer screening has been recommended by the United States Preventive Services Taskforce since 2013. The Centers for Medicare and Medicaid Services coverage decision in early 2015 required data submission to a Centers for Medicare and Medicaid Services-approved registry for facilities to receive payment for screening. Only the American College of Radiology's Lung Cancer Screening Registry (LCSR) received approval for this purpose. Some LCSR elements, such as race, ethnicity, downstream diagnostic procedures, and cancer outcomes, were underreported.

Methods: To address underreporting, we linked data from the LCSR to Medicare and Surveillance, Epidemiology, and End Results cancer registry data from 2015 to 2021. We created two different cohorts of individuals aged 65 years and older: (1) those who were enrolled in Medicare fee-for-service plans with parts A and B coverage at the time of at least one LCSR-reported screen, and (2) Medicare beneficiaries (regardless of whether fee-for-service or managed care) living within a Surveillance, Epidemiology, and End Results catchment area at the time of at least one LCSR-reported screen. We compared the characteristics of individuals in the linked cohorts with those of all individuals in the LCSR aged 65 years and over.

Results: Demographic, smoking history, and screening examination data elements in the linked data were generally similar to those in the overall LCSR.

Conclusions: On the basis of these results, the linked populations seem to be generally representative of older individuals in the LCSR. These unique data linkages provide an unprecedented opportunity to better understand the early implementation of lung cancer screening in the United States.