Figure 1From: A population-based cohort study of chest x-ray screening in smokers: lung cancer detection findings and follow-up Comparison of lung cancer (LC) -specific survival curves (Kaplan-Meier). Shown are (A) screen-detected LCs (n = 34) vs. nonscreen-detected LCs (n = 33), (B) screening participant LCs (n = 67) vs. nonparticipant LCs (n = 178), (C) cohort LCs (n = 245) vs. control group LCs (n = 156), and (D) nonparticipant LCs (n = 178) vs. control group LCs (n = 156).Back to article page