Related Experiment Video
Updated: Apr 8, 2026

13:44
Detection of Architectural Distortion in Prior Mammograms via Analysis of Oriented Patterns
Published on: August 30, 2013
43.9K
Viewpoint: It is time to reconsider policy for population-based mammography screening
1School of Nursing, Memorial University of Newfoundland, Office 2955, St John's, NI, Canada A1B 3V6.
Journal of Public Health Policy
|June 26, 2015
Summary
Mammography screening for breast cancer shows no reliable mortality reduction. Evidence suggests harms like false positives, over-diagnosis, and distress, prompting a call for selective early detection strategies.
Area of Science:
- Oncology
- Public Health
- Radiology
Background:
- Breast cancer remains a significant cause of morbidity and mortality in women.
- Population-based mammography screening programs are widely implemented for early detection in Western countries.
- Debate surrounds the benefits versus harms of universal mammography screening.
Purpose of the Study:
- To evaluate the evidence on the effectiveness and harms of population-based mammography screening.
- To inform policy decisions regarding universal versus selective breast cancer screening.
Main Methods:
- Systematic review by the Cochrane Collaboration.
- Analysis of the 25-year follow-up data from the Canadian National Breast Screening Study.
Main Results:
- No reliable evidence found that population-based mammography screening reduces breast cancer mortality.
- Significant evidence of harm, including false positive findings, over-diagnosis, and unnecessary treatments.
- Associated psychological distress reported as a consequence of screening.
Conclusions:
- Current evidence does not support universal population-based mammography screening.
- A shift towards more selective early detection approaches for breast cancer is recommended.
- Policymakers should reconsider the current approach to breast cancer screening programs.

