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Related Concept Videos

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Related Experiment Video

Updated: May 14, 2026

Clinical Imaging of Microwave Mammography
05:28

Clinical Imaging of Microwave Mammography

Published on: November 14, 2025

Mammography screening: how far is too far?

W E Osmun1, J Copeland, L Boisvert

  • 1University of Western Ontario, London, Ontario, Canada.

Rural and Remote Health
|February 15, 2013
PubMed
Summary
This summary is machine-generated.

Canadian women face travel risks when undergoing mammography screening. The distance before motor vehicle accident (MVA) risk outweighs screening benefits varies significantly by age and province, ranging from 65 km to 1151 km.

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Area of Science:

  • Public Health
  • Epidemiology
  • Medical Decision Making

Background:

  • Mammography screening is a key tool for early breast cancer detection.
  • The potential risks associated with travel for screening are often overlooked.

Purpose of the Study:

  • To determine the travel distance at which motor vehicle accident (MVA) risk exceeds mammography screening benefits for Canadian women.
  • To quantify the trade-off between screening benefits and travel-related risks.

Main Methods:

  • Extracted screening guidelines data (numbers needed to screen, false positive rates) from the Canadian Task Force.
  • Utilized Transport Canada data for motor vehicle accident rates.
  • Reviewed patient charts to assess travel associated with false positive mammograms.
  • Developed a formula to compare travel distance/MVA risk with screening benefits.

Main Results:

  • The critical travel distance varies by province and patient age.
  • This distance ranged from 65 km to 1151 km for a round trip.
  • Location and age are key determinants in the risk-benefit analysis of mammography screening.

Conclusions:

  • Travel risks associated with screening examinations are significant.
  • The benefits of mammography screening can be negated by the risks of travel.
  • Incorporating travel risk assessment is crucial for informed screening recommendations.