Sibling risks in cancer: clues to recessive or X-linked genes?
2001
Sibling Cancer Risks and Genetic Factors
publication
Evidence: moderate
Author Information
Author(s): Hemminki K, Vaittinen P, Dong C, Easton D
Primary Institution: Department of Biosciences at Novum, Karolinska Institute
Hypothesis
Are there recessive or X-linked genes that increase cancer risks in siblings?
Conclusion
The study found that siblings of cancer patients have significantly higher cancer risks, suggesting the influence of genetic factors.
Supporting Evidence
- Siblings of cancer cases have a significantly elevated risk of developing cancer themselves.
- The relative risk for siblings is about twice that of offspring for certain cancers.
- Risks are particularly high for colorectal, ovarian, prostate, renal cancer, and leukaemia.
Takeaway
If your brother or sister has cancer, you might have a higher chance of getting it too because of genes you share.
Methodology
Analysis of cancer risks using the Swedish Family-Cancer Database.
Participant Demographics
The study analyzed data from the Swedish Family-Cancer Database.
Statistical Information
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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