Cancer Risk in Norwegian Twins
Author Information
Author(s): Iversen T, Tretli S, Kringlen E
Primary Institution: The Department of Oncology, Ullevaal Hospital, Oslo, Norway
Hypothesis
Twins born in Norway between 1905 and 1945 have a different risk of developing cancer compared to the general population.
Conclusion
Twins showed a reduced risk of malignant disease, particularly for skin melanomas and certain other cancers.
Supporting Evidence
- Twins showed a standardized incidence rate of 0.90 for females and 0.95 for males.
- A significant reduced incidence of malignant melanomas of the skin was observed.
- The incidence of colorectal cancer tended to be reduced for both sexes.
- In females, the incidence of tumours of the central nervous system and lungs were reduced.
Takeaway
This study looked at twins in Norway and found that they are less likely to get cancer than other people.
Methodology
The study linked data from twins to the Cancer Registry of Norway to analyze cancer incidence.
Limitations
The reasons for the reduced cancer incidence among twins are not explained.
Participant Demographics
Twins born in Norway between 1905 and 1945.
Statistical Information
Confidence Interval
95% CI 0.85–0.94 for females, 95% CI 0.90–0.99 for males
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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