Figure 4.
The nature of relationships between age, stem cell number, mutation rate and cancer incidence predicted by the CDS model. In this model the cumulative incidence can saturate much below 100% depending upon the distribution of Δg. The age incidence curve at different n (A,B) and different mutation rates (C,D) show an early saturating trend rather than a threshold phenomenon. The log-log plot between stem cell number and life time incidence may be saturating or linear with a slope < = 1 (E). With a reduction in the mean Δg, the cell number incidence curve saturates early (F). All parameters similar to Fig. 2.