Thyroid Cancer Trends in England and Wales
Author Information
Author(s): I. dos Santos Silva, A.J. Swerdlow
Primary Institution: London School of Hygiene and Tropical Medicine
Hypothesis
Is the increase in thyroid cancer incidence related to fallout radiation from nuclear tests?
Conclusion
Thyroid cancer incidence has increased, particularly in younger women, but mortality has decreased due to better survival rates.
Supporting Evidence
- Thyroid cancer incidence increased significantly in both sexes under 45 from 1962 to 1984.
- Mortality rates from thyroid cancer decreased from 1959 to 1989.
- Highest incidence risks were found in North and Mid Wales, particularly in rural areas.
Takeaway
More people are getting thyroid cancer, especially younger women, but fewer are dying from it because treatments are better now.
Methodology
The study analyzed data from the England and Wales National Cancer Registry and national mortality files from 1962 to 1984.
Potential Biases
Potential biases due to incomplete data and variations in diagnostic practices over time.
Limitations
The completeness of cancer registration may have improved over time, which could affect incidence rates.
Participant Demographics
Data included both males and females, with a focus on those aged under 45 and 45 and over.
Statistical Information
P-Value
p<0.001
Confidence Interval
0.92-4.46
Statistical Significance
p<0.001
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