U.S. guidelines now recommend fewer mammograms for most women, and researchers fear that could lead to lower screening rates and a dip in breast cancer detection.
Two new studies were recently presented at the annual meeting of the Radiological Society of North America. One found a nearly five percent decline in screening rates among medicare patients. The second study looked at more than 43-thousand mammograms done between 2007 and 2010.
Overall there were just under five cancers caught for every thousand mammograms and 20 percent of those cancers were in found women in their forties.
The findings should be considered preliminary until they have been published in a peer-reviewed medical journal.