Figure 3b. Graphs show the percentage of screening subjects with (a) cancer detected with radiologic screening for three constant detection functions and (b) observed cancers. Zero indicates baseline screening. The action size for these functions was 2 mm. The percentage of observed cancers in the steady state is the same for all three functions. As the detection rate decreased, the percentage of subjects with cancers detected at baseline decreased. Missed tumors resulted in a transition period between baseline screening and steady-state screening; a larger percentage of cancers were detected with poorer performing techniques during transition screenings.