Thyroid Cancer in Ontario:

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Thyroid Cancer in Ontario A Preliminary Report
Musk Ox Surveillance Swat Team
February 28, 2008
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Questions

• Is Thyroid Cancer a problem in
• Ontario?
• Are there specific populations at greater risk?

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Overview

• Big Picture
• Nuclear Reactor Effect?
• Summary
• Future Directions

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Overview Cancer in Ontario

• Thyroid Cancer Burden
• The most common cancer in young women in Ontario.
  
• It accounts for an estimated 400 new cases in
  Ontario men BUT 1600 new cases and 35 deaths in
  Ontario females in 2007.
• Ontario has the highest rate of thyroid cancer in
  Canadian females.
• Source Canadian Cancer Statistics 2007

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Trends in Thyroid Cancer
Age-Standardized Incidence Rates for Thyroid
Cancer in Ontario, 1986-2004
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Trends (contd)
Age-Standardized Incidence Rates for Thyroid
Cancer by Province, Females, 1986-2004
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Types of Thyroid Cancer
Age-Standardized Incidence Rates for Thyroid
Cancer by Histologic Type, Females, 1971-2004
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Age Comparisons
Age-Specific Incidence Rates for All Thyroid
Cancers by Sex
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Overview

• Big Picture
• Nuclear Reactor Effect?
• Summary
• Future Directions

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Nuclear Power Plant
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Nuclear Power Plant Locations in Ontario
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Overview

• Big Picture
• Nuclear Reactor Effect?
• Summary
• Future Directions

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Summary

• Incidence
• Nuclear Power Plants
• Burden

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Overview

• Big Picture
• Nuclear Reactor Effect?
• Summary
• Future Directions

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Future Directions

• Screening
• No evidence to show that screening reduces
  mortality.
• Risks involved do not appear to outweigh
  benefits.
• Legislation
• Complete and timely case ascertainment of data
  for cancer registration is a must.
• Privacy legislation prevents us from reporting
  more detailed information to the Ministry of
  Health and other public authorities.

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Future Directions

• Further Investigations
• Estimating risk at a smaller geographic level.
• Following changes over time.
• Patterns of use in Diagnostic Tests.
• Funding
• Financial resources required for
• Staffing/Training
• Software
• Improving Education Tools