A 2005 study concluded that a push in Denmark to screen large numbers of women for breast cancer with mammography had reduced breast cancer deaths in Copenhagen by a whopping 25 percent. Sounds like proof that regular mammograms are truly life-savers, right? Wrong. Scientists from the Nordic Cochrane Center in Copenhagen and the Folkehelseinstituttet in Oslo have re-examined this pro-mammogram study along with additional data and come up with an entirely different conclusion.
First, they found that the scientific validity of the 2005 study doesn’t hold up because the research was deeply flawed. Even more important: the new report shows there’s no evidence mammography itself was the reason behind any reduction in breast cancer deaths. In fact, deaths from breast cancer were lower in areas where women didn’t undergo those screening tests.