Long-term risks of subsequent primary neoplasms among survivors of childhood cancer
View abstract on PubMed
Summary
This summary is machine-generated.Childhood cancer survivors face a significantly higher risk of developing new cancers later in life, particularly digestive and genitourinary neoplasms after age 40. This study highlights the long-term cancer risks for these individuals.
Area Of Science
- Oncology
- Epidemiology
- Cancer Survivorship Research
Background
- Childhood cancer survivors have an elevated risk of subsequent primary neoplasms.
- Long-term risks and specific cancer types contributing to this excess risk are not fully understood.
Purpose Of The Study
- To investigate the long-term risks of subsequent primary neoplasms in childhood cancer survivors.
- To identify specific cancer types posing the greatest long-term risk.
- To pinpoint survivor subgroups requiring targeted interventions for specific subsequent neoplasms.
Main Methods
- Utilized the British Childhood Cancer Survivor Study, a population-based cohort.
- Included 17,981 five-year survivors diagnosed with cancer before age 15 (1940-1991).
- Followed participants through December 2006, analyzing standardized incidence ratios (SIRs) and absolute excess risks (AERs).
Main Results
- A total of 1354 subsequent primary neoplasms were identified after a median follow-up of 24.3 years.
- The overall SIR was 3.9, indicating four times the expected risk of new cancers.
- Digestive and genitourinary neoplasms showed the highest excess risk after age 40, accounting for 36% of the total excess risk.
Conclusions
- Childhood cancer survivors experience a substantially increased risk of subsequent primary neoplasms.
- Digestive and genitourinary neoplasms represent the greatest long-term cancer risk for survivors over 40.
- Specific interventions may be necessary for survivors at high risk for particular subsequent neoplasms.