Since 1958, Swedish researchers have conducted extensive studies on individuals under 25 diagnosed with cancer, leveraging the detailed data captured in the National Cancer Register. This research, led by experts from Linköping University and Region Östergötland, has revealed that survivors face significantly increased risks of cardiovascular diseases, other cancers, and various health issues as they age. Additionally, the impact of socioeconomic factors on survival rates has been a critical aspect of their findings, highlighting disparities based on education, background, and marital status.
The study spans over six decades and includes about 65,000 cancer patients under 25, compared with a control group of 313,000 individuals matched for age, sex, and living conditions. These comparisons were enriched with further data on health outcomes and demographics from other registers, providing a comprehensive view of the long-term effects of childhood and young adult cancer diagnoses.
Significant findings from the research indicate that cancer survivors are three times more likely to develop cancer again, face a 1.23-fold increased risk of cardiovascular diseases, and are 1.41 times more likely to suffer from accidents, poisoning, and suicide. These alarming statistics underscore the need for ongoing monitoring and support well beyond the typical five-year follow-up period that currently marks the end of regular care for many survivors.
Laila Hübbert, a researcher at Linköping University and a consultant at the Cardiology Clinic at Vrinnevi Hospital in Norrköping, emphasizes that cancer treatments like chemotherapy and radiation significantly contribute to the increased risk of cardiovascular diseases later in life. She advocates for extended and planned follow-up care to manage and mitigate these risks effectively, arguing against the premature discharge of patients without ensuring continued surveillance and intervention.
Collaborating between clinical researchers and statisticians has been pivotal in analyzing vast and complex data sets. Martin Singull, a professor of mathematical statistics, together with his team and computer scientist Robin Keskisärkkä, who developed the database infrastructure, have utilized sophisticated statistical models to navigate the intricacies of the data sourced from various registers. This collaboration aims to extract actionable insights that will influence future healthcare policies and practices.
The researchers are committed to deepening their analysis by focusing on specific areas such as the interplay between socioeconomic factors and health outcomes, the relationship between cancer and subsequent cardiovascular conditions (cardio-oncology), and other cancer-related issues. Laila Hübbert notes the unique position of Sweden, with its comprehensive, high-quality national registers, to conduct such detailed and impactful studies, highlighting the potential for these findings to influence global standards in cancer survivorship care.
More information: Margaretha Stenmarker et al, Morbidity and mortality among children, adolescents, and young adults with cancer over six decades: a Swedish population-based cohort study (the Rebuc study), The Lancet Regional Health – Europe. DOI: 10.1016/j.lanepe.2024.100925
Journal information: The Lancet Regional Health – Europe Provided by Linköping University
