Anderson C, et al. - Researchers assessed conditional relative survival (an indicator of changing mortality risk with time since cancer diagnosis) among long-term survivors of adolescent and young adult cancers (AYA; those aged 15-39 years), using the Surveillance, Epidemiology, and End Results registry 9 database. In a cohort of AYA patients diagnosed with a first malignant cancer between 1973 and 2009 and followed through 2014, they assessed 5-year relative survival at the time of diagnosis, and at each additional year survived up to 25 years after diagnosis, conditional on the individual being alive at the beginning of that year. Overall, when planning follow-up care for AYA survivors of breast cancer, central nervous system tumors, and hematologic malignancies, long-term excess mortality was recommended to be taken into account.