標題: it's 2.3 percent. And a 60 year old has a 3.5 percent risk in the next decade. [打印本頁] 作者: dwbdnkcp 時間: 2016-3-31 03:32 標題: it's 2.3 percent. And a 60 year old has a 3.5 percent risk in the next decade.
Review Finds Mammography's Benefits Overplayed
Talk to women here in the office, and it quickly becomes clear that we're confused about what to do about mammograms. And no wonder. Preventive Service's Task Force recommendation that women be screened every other year starting at age 50.
Now, the latest entries two studies that try to put all the previous research on mammography's harms and benefits in perspective.
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Latest Evidence Against Mammograms Adds To Women's Uncertainty
First, researchers at Harvard took a broad look at all the research on mammograms since 1960 more than 50 years of study. They also looked at evidence on the harms of false positives and overdiagnoses, in which a woman is treated for a cancer that would never have proved deadly. And they reviewed whether current efforts to try to personalize a woman's cancer risk helped a Ghd Hair Straighteners For Sale woman figure out whether it was worth her Replica Tiffany Jewelry Australia while to get a mammogram.
Their conclusion: The benefits of mammography, though real, have been oversold, while the harms have been minimized.
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Annual mammograms reduce the risk of dying from breast cancer by about 19 percent, but the benefit varies widely based on a woman's age and underlying cancer risk, the study found. For instance, about Ghd Sale Australia Cheap 1,904 women in their 40s would have to be screened to prevent one death, compared with just 377 women in their 60s.
That's because breast cancer becomes much more common as a woman ages. At age 40, a woman's risk of getting breast cancer in the next 10 years is 1.5 percent. At age 50, it's 2.3 percent. And a 60 year old has a 3.5 percent risk in the next decade.
The results were published Tuesday in JAMA, the journal of the American Medical Association.
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The analysis found that about 19 percent of women who are diagnosed with breast cancer as a result of a mammogram are overdiagnosed getting surgery, chemotherapy or Ghd Shop London radiation to treat a cancer that would never be life threatening.
The bottom Cheap Nike Tns line, the researchers say, is that mammography is a less than perfect screening test, and doctors and patients need a lot more help figuring out if and when to use it.
And women age 75 and older really need to consider whether they should be having mammograms at all, a second study in JAMA reports. As the researchers point Roshe Run Australia out, there are no randomized controlled trials of mammography in women in that age group. So there's no way to know how much they might extend a woman's life.
So the harms of screening probably outweigh any benefits in women who will live for less than 10 years, the researchers say, and women who think they will live longer than that should talk with their doctors about the benefits and risks.
