RATIONALE Future optimization of CT lung cancer screening algorithms will depend on clinical outcomes data. OBJECTIVES To report the outcomes of positive and suspicious findings in a clinical CT lung cancer screening program. METHODS We retrospectively reviewed results for patients from our institution undergoing lung cancer screening from 1/2012 through 12/2018, with follow-up through 12/2019. All exams were retrospectively re-scored using Lung-RADS® v1.1. Metrics assessed included positive, probably benign and suspicious exam rates, frequency/nature of care escalation, and lung cancer detection rates following a positive, probably benign, and suspicious exam result and overall. We calculated time required to resolve suspicious exams as malignant or benign. Results were broken down by subcategories, reason for positive/suspicious designation, and screening round. RESULTS During the study period 4301 individuals underwent a total of 10897 exams. The number of positive (13.9%), suspicious (5.5%), and significant incidental (6.4%) findings were significantly higher at baseline screening. Cancer detection and false positive rates were 2.0% and 12.3% at baseline vs 1.3% and 5.1% across subsequent screening rounds respectively. Baseline solid nodule(s) 6 to < 8 mm were the only probably benign findings resulting in lung cancer detection within 12 months. New solid nodules 6 to < 8 mm were the only Lung-RADS® 4A findings falling within the Lung-RADS® predicted cancer detection range of 5-15% (12.8%). 38.5% of Lung-RADS® 4A cancers were detected within three months. CONCLUSIONS Modification of the definition and suggested workup of positive and suspicious lung cancer screening findings appears warranted.