Figure 1From: Modeling screening, prevention, and delaying of Alzheimer's disease: an early-stage decision analytic model Incidence rates converted to event times using piecewise linear or exponential approximations. Example of a female screened before age 70, with incidence of AD at age 77 = 0.003, at age 82 = 0.074, at age 85 = 0.03. The y-axis is the cumulative probability of AD before the time shown.Back to article page