Family History of Cancer and Risk of Second Malignancies After Hodgkin's Lymphoma
Author Information
Author(s): Andersson A, Enblad G, Tavelin B, Björkholm M, Linderoth J, Lagerlöf I, Merup M, Sender M, Malmer B
Primary Institution: Umeå University Hospital
Hypothesis
Does a family history of cancer increase the risk of second primary malignancies after Hodgkin's lymphoma?
Conclusion
Hodgkin's lymphoma survivors with a family history of cancer have an increased risk of developing second malignancies.
Supporting Evidence
- Survival in HL patients treated at 40 years or younger was decreased compared with the general population.
- Among the 6946 HL patients, 696 (15%) developed a total of 781 second malignancies.
- The risk for developing second malignancies increased with the number of first-degree relatives with cancer.
Takeaway
If someone has had Hodgkin's lymphoma and their family has a history of cancer, they might be more likely to get another type of cancer later on.
Methodology
The study analyzed data from 6946 Hodgkin's lymphoma patients treated in Sweden from 1965 to 1995, assessing their family history of cancer and the incidence of second malignancies.
Potential Biases
Potential bias due to reliance on patient interviews and medical records for family history data.
Limitations
The study did not have therapy data from the cancer register, which may affect the results.
Participant Demographics
The cohort included 2873 female and 4073 male patients with a mean age at diagnosis of 52 years.
Statistical Information
P-Value
2.62
Confidence Interval
95% CI: 2.32–2.96
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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