Screening for Breast Cancer: Evidence Report and Systematic Review for the US Preventive Services Task Force

  • 0Kaiser Permanente Evidence-based Practice Center, Center for Health Research, Portland, Oregon.

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Summary

This summary is machine-generated.

Current breast cancer screening evidence is inconclusive. More research is needed on optimal screening ages, intervals, and modalities to reduce mortality risk.

Area Of Science

  • Oncology
  • Radiology
  • Preventive Medicine

Background

  • Breast cancer remains a leading cause of mortality for US women.
  • Screening mammography reduces mortality risk, but optimal strategies are unclear.

Purpose Of The Study

  • To review studies comparing different breast cancer screening strategies for the US Preventive Services Task Force.

Main Methods

  • Systematic review of randomized clinical trials and nonrandomized studies.
  • Literature search of MEDLINE and Cochrane Library through August 2022, with surveillance through March 2024.
  • Data extraction and synthesis from fair- and good-quality studies.

Main Results

  • Limited evidence on mortality outcomes beyond age 74.
  • Digital breast tomosynthesis (DBT) showed no significant difference in interval cancers but lower recall rates.
  • Supplemental screening (MRI, ultrasound) showed mixed results with increased false positives.

Conclusions

  • Evidence comparing breast cancer screening strategies is inconclusive.
  • Key studies are incomplete, and few report necessary mortality outcomes.
  • Further research is required to establish optimal screening guidelines.

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