Figure 1. Randomization and Follow-up of the Study Participants.
Panel A shows randomization and follow-up for the T1 screening. During the T1 study year, 2 of 437 ineligible participants in the low-dose computed tomography (CT) group and 3 of 322 ineligible participants in the radiography group received a diagnosis of lung cancer (data not shown). Panel B shows randomization and follow-up for the T2 screening. During the T2 study year, 3 of 780 ineligible participants in the low-dose CT group and 4 of 622 ineligible participants in the radiography group received a diagnosis of lung cancer (data not shown).