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Colorectal cancer is the 3rd most commonly diagnosed cancer in Canada (excluding non-melanoma skin cancers). It is the 2nd leading cause of death from cancer in men and the 3rd leading cause of death from cancer in women in Canada.
To provide the most current cancer statistics, researchers use statistical methods to estimate the number of new cancer cases and deaths until actual data become available.
Incidence is the total number of new cases of cancer. Mortality is the number of deaths due to cancer.
It is estimated that in 2015:
Incidence rate (for every 100,000 people)*
Death rate (for every 100,000 people)*
5-year relative survival (estimates for 2006–2008)
*Age-standardized to the 1991 Canadian Standard Population. Age-standardization is a statistical method that removes the effect of age on the calculated rate. It allows rates to be compared over time or across provinces and territories.
Starting from the mid-1980s, incidence rates declined for both sexes until the mid-1990s (although this decline was more prominent for females). Incidence rates then rose through 2000, only to decline significantly thereafter. This is most likely due to increased use of colorectal cancer screening which can identify and remove precancerous polyps, which can in turn reduce incidence.
Death rates have been declining for men since 2004 and for women since 2000.
Based on 2010 estimates:
For more information, go to Canadian Cancer Statistics publication.
A clinical trial led by the Society’s NCIC Clinical Trials group found that men with prostate cancer who are treated with intermittent courses of hormone therapy live as long as those receiving continuous therapy.