Figure 2. Combined Results for the Studies of Lung Cancer Screening With Computed Tomography

Conducted at the Istituto Tumori (Milan, Italy), the Mayo Clinic (Rochester, Minn), and the Moffitt Cancer Center (Tampa, Fla). The left axis shows the actual and predicted numbers of individuals with different lung cancer outcomes. The right axis shows the number at risk (blue tinted area). P values are for the difference between the observed and the predicted number of events over the course of the study.