Incidence

Overall Trend
  • In 2014, there were 101 new cases of breast cancer among Chatham-Kent female residents.
  • The incidence rate for females was 152.0 (121.7, 182.4) per 100,000 which was not significantly different than the rate of 146.1 (143.4, 148.9) per 100,000 for Ontario.
  • Over time, rates for Chatham-Kent have been relatively stable and generally higher than rates for the province overall.
Age-standardized incidence rate for female breast cancer, Chatham-Kent and Ontario, 2010-2014
Age-standardized incidence rate for female breast cancer, Chatham-Kent and Ontario, 2010-2014
By Age Group
  • For Ontario, incidence rates were highest among women aged 65 and older. A similar trend was observed for Chatham-Kent, however not all differences between age groups were significant.
Incidence rate for female breast cancer, by age, Chatham-Kent and Ontario, 2014
Incidence rate for female breast cancer, by age, Chatham-Kent and Ontario, 2014

Mortality

Overall Trend
  • In 2015, there were 18 deaths due to breast cancer among Chatham-Kent female residents.
  • The mortality rate was 25.4 (12.8, 38.1) per 100,000 which was similar to the rate of 24.1 (23.0-25.1) per 100,000 for Ontario.
  • Over time, rates have declined locally and provincially, with rates for Chatham-Kent fluctuating around the rates for Ontario.
Age-standardized mortality rate for female breast cancer, Chatham-Kent and Ontario, 2003-2015
Age-standardized mortality rate for female breast cancer, Chatham-Kent and Ontario, 2003-2015
By Age Group
  • Ontario females 80 years and older had significantly higher mortality rates compared to other age groups. A similar trend was observed among Chatham-Kent females, however the difference between age groups was not significant.
  • In Chatham-Kent, those aged 50 to 64 experienced significantly lower rates compared to Ontarians of the same age group.
Mortality rate for female breast cancer, by age, Chatham-Kent and Ontario, 2015
Mortality rate for female breast cancer, by age, Chatham-Kent and Ontario, 2015