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2015 Breast Cancer Screening Health Indicator Report

Purpose of the Health Indicator Report

The purpose of this Health Indicator Report is to provide information about the percentage of screen-eligible females in Halton Region who followed breast cancer screening guidelines.


Regular screening can detect breast cancer when it is at an earlier, more treatable stage. The earlier breast cancer is found, the better the chance of successful treatment.

Cancer Care Ontario's screening guidelines recommend that all females aged 50-74 who are at average risk of breast cancer be screened using a mammogram (breast X-ray) every two years.

This Health Indicator Report uses administrative data from Cancer Care Ontario. For more information on cancer in Halton Region, please see the 2008-2012 Halton Region Cancer Incidence and Mortality Report.

Key Findings

Trends Over Time

  • 61% of Halton screen-eligible females and 59% of Ontario screen-eligible females participated in breast screening in 2012-13. This difference was statistically significant.
  • In both Halton and Ontario, screening participation has shown minor fluctuations over time. These changes may reflect changes over time in screening guidelines.


  • In 2012-13, screening participation increased among Halton screen-eligible females as age increased. Participation was statistically significantly higher among women in their sixties compared to all younger age groups. Participation then decreased, and was statistically significantly lower among women aged 70-74 compared to all other age groups.


  • In 2012-13, the percentage of screen-eligible females participating in breast screening was slightly higher in Halton Hills and Burlington compared to Oakville and Milton. These differences were statistically significant.


  • In 2012-13, the percentage of screen-eligible females who participated in breast screening increased as neighbourhood income increased. This difference was statistically significant when comparing residents of the lowest-income neighbourhoods to residents of the highest-income neighbourhoods.