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Results of the Two Incidence Screenings in the National Lung Screening Trial
This study reports results from the first 2 of 3 incidence screening rounds of the NLST in patients who had no evidence of cancer on the initial screening CT/CXR. Abnormal results were identified in 28% and 17% on the 1st and 2nd screening CTs compared to 6% and 5% in the CXR screens. Among detected lung cancers, 47.5% were stage IA in the CT group and 23.5% were stage IA in the CXR group.