Slide 43. Evidence of Net Benefit of Mammography

Understanding the Methods Used by the U.S. Preventive Services Task Force in Developing Recommendations

Slide 43. Evidence of Net Benefit of Mammography

Evidence of Net Benefit of Mammography

Estimation of certainty and magnitude of net benefit (benefit minus harm):

  • The USPSTF emphasizes the adverse consequences for most women—who will not develop breast cancer—and therefore use the number needed to screen to save 1 life as its metric. By this metric, the USPSTF concludes that there is moderate evidence that the net benefit is small for women aged 40 to 49 years.
  • For biennial screening mammography in women aged 50 to 74 years, there is moderate certainty that the net benefit is moderate.

http://www.uspreventiveservicestaskforce.org/uspstf09/breastcancer/brcanrs.htm

Contents

Current as of August 2010
Internet Citation: Slide 43. Evidence of Net Benefit of Mammography: Understanding the Methods Used by the U.S. Preventive Services Task Force in Developing Recommendations. August 2010. Agency for Healthcare Research and Quality, Rockville, MD. http://www.ahrq.gov/cpi/centers/ockt/kt/webinars/tfmethods/tfmethodsld43.html