Using the “proportion of patients covered” and the Kaplan‐Meier survival analysis to describe treatment persistence

Purpose Standard Kaplan‐Meier (KM) survival analysis is often used to study treatment persistence estimating the proportion of patients who have not yet experienced a treatment break by a given day after treatment initiation. This method only allows patients to be studied until their first treatment break. The “proportion of patients covered” (PPC) method is another approach to study treatment persistence. It measures the proportion of live...