Cancer Risk in Patients with Chromosome Deletions
Author Information
Author(s): Swerdlow A J, Schoemaker M J, Higgins C D, Wright A F, Jacobs P A
Primary Institution: Institute of Cancer Research
Hypothesis
Do patients with constitutional chromosome deletions have increased cancer risks compared to the general population?
Conclusion
The study found significantly increased cancer risks, particularly for renal, eye, and anogenital cancers, in patients with specific chromosome deletions.
Supporting Evidence
- Thirty cancers other than non-melanoma skin cancer occurred in the cohort.
- Renal cancer risk in subjects with 11p deletions was almost 2000-fold increased.
- Eye cancer risk in subjects with 13q deletions was significantly elevated.
- Anogenital cancer risk in patients with 11q deletions was also significantly increased.
Takeaway
Kids with certain chromosome deletions are more likely to get specific types of cancer, like kidney and eye cancer.
Methodology
The study analyzed cancer incidence in a cohort of patients with constitutional chromosome deletions diagnosed in Britain from 1965 to 2002, comparing their cancer rates to national averages.
Potential Biases
Potential bias from selective cytogenetic diagnosis in patients already ill with undiagnosed cancer.
Limitations
The study may have omitted some patients due to incomplete records, and the completeness of cancer diagnosis may vary over time.
Participant Demographics
The cohort was primarily diagnosed under 15 years of age, with a slight female majority (52% female, 48% male).
Statistical Information
P-Value
4 × 10−21
Confidence Interval
95% CI 1.6–3.5
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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