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17 April 2014 12:48 pm ,
Vol. 344 ,
Officials last week revealed that the U.S. contribution to ITER could cost $3.9 billion by 2034—roughly four times the...
An experimental hepatitis B drug that looked safe in animal trials tragically killed five of 15 patients in 1993. Now,...
Using the two high-quality genomes that exist for Neandertals and Denisovans, researchers find clues to gene activity...
A new report from the Intergovernmental Panel on Climate Change (IPCC) concludes that humanity has done little to slow...
Astronomers have discovered an Earth-sized planet in the habitable zone of a red dwarf—a star cooler than the sun—500...
Three years ago, Jennifer Francis of Rutgers University proposed that a warming Arctic was altering the behavior of the...
- 17 April 2014 12:48 pm , Vol. 344 , #6181
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Are Mammograms Beneficial?
12 February 2014 4:00 pm
A new study questions the value of mammograms after finding that mortality rates from breast cancer in women who have the annual exam are the same as women who don’t. The New York Times reports the study—published this week in BMJ—involved some 90,000 women age 40 to 59 and lasted a quarter of a century. The findings are now being reviewed by an expert panel of the American Cancer Society to see if it changes its recommendation for annual mammograms. Scientists suggest that past studies showing the exam is beneficial were done when drugs that could sharply reduce breast cancer mortality weren’t available—a time when early detection was even more critical.
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