Cumulative incidence of developing a second cancer and cumulative probability of death because of competing causes, after multiple myeloma. Data, which are based on 33 229 patients who received a diagnosis of multiple myeloma between 1973 and 2008 in the United States, are from the Surveillance, Epidemiology, and End Results Program of the National Cancer Institute. Reprinted from Landgren et al with permission.⁷⁰