Predictive Testing for BRCA1/2: Understanding Risk and Management
Author Information
Author(s): Foster C, Evans D G R, Eeles R, Eccles D, Ashley S, Brooks L, Davidson R, Mackay J, Morrison P J, Watson M
Primary Institution: The Institute of Cancer Research
Hypothesis
What are the mental health impacts and risk perceptions of individuals offered predictive genetic testing for BRCA1/2 mutations?
Conclusion
Younger women are more worried about developing cancer and may be particularly vulnerable when offered predictive genetic testing.
Supporting Evidence
- Most participants were women from families with known BRCA1/2 mutations.
- Younger women reported higher levels of cancer worry than older women.
- Participants were assessed for mental health and risk perception prior to genetic testing.
- Many women overestimated their risk of developing breast and ovarian cancer.
- Self-referral was the most common reason for attending genetic counselling.
Takeaway
This study looked at people who might get tested for a gene that increases cancer risk. It found that younger women worry more about cancer than older women.
Methodology
The study involved 312 adults from nine UK centres who were assessed for mental health, risk perception, and motivations for genetic testing.
Potential Biases
Participants may have been influenced by their family history and the context of clinical genetic testing.
Limitations
The study primarily included individuals from clinical settings, which may not represent the general population.
Participant Demographics
76% female, median age 41 for women and 48 for men, primarily white, with a significant portion having children.
Statistical Information
P-Value
p<0.001
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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