Family History and Lung Cancer Risk
Author Information
Author(s): Athena Matakidou, Tim Eisen, Richard Houlston
Primary Institution: Institute of Cancer Research
Hypothesis
Does having a family history of lung cancer increase the risk of developing the disease?
Conclusion
The study found that having a family member with lung cancer significantly increases the risk of developing the disease, especially if the relative was diagnosed at a young age or if multiple family members are affected.
Supporting Evidence
- Data from both case-control and cohort studies show a significantly increased lung cancer risk associated with having an affected relative.
- Risk appears to be greater in relatives of cases diagnosed at a young age and in those with multiple affected family members.
- Increased lung cancer risk was observed in association with an affected spouse.
Takeaway
If someone in your family has had lung cancer, you might be more likely to get it too, especially if they were young when they got sick.
Methodology
The study performed a systematic review and meta-analysis of 28 case-control, 17 cohort, and 7 twin studies.
Potential Biases
Recall bias may affect the accuracy of family history reported by patients after a lung cancer diagnosis.
Limitations
The study discusses limitations in the ability to infer genetic susceptibility due to shared environmental exposures and potential recall bias.
Participant Demographics
The study included a diverse population across various countries, with a focus on both smokers and non-smokers.
Statistical Information
P-Value
p<0.001
Confidence Interval
95% CI: 1.58–2.10
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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