Study Participants

Study Participants

Participants in the LTFU Study are individuals diagnosed with cancer between 1970 and 1999, before reaching the age of 21. Each participant has been recruited through one of the 31 participating clinical research centers, where he or she was diagnosed and/or treated. Study criteria require that all participants must have survived at least five years from their initial diagnosis with cancer; this means that individuals who survived five years and subsequently died are included in the cohort. In addition to cancer survivors, LTFU has also collected information on a random sample of siblings of survivors.