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Kirata -> RE: Petition: Susan G. Komen for the Cure: Put Women's Lives Before Politics (2/3/2012 8:02:08 AM)
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quote:
ORIGINAL: kalikshama
It's incredibly disappointing for an organization founded on protecting women's health to play politics with real women's lives.
Very true, but Planned Parenthood likes MONEY.
A way to view the potential benefit of breast cancer screening is to estimate the number of lives extended because of early breast cancer detection.[20,21] Harris [22] estimated the outcomes of 10,000 women aged 50 to 70 years who undergo a single screen. Mammograms will be normal (true negatives and false negatives) in 9,500 women. Of the 500 abnormal screens, between 466 and 479 will be false-positives, and 100 to 200 of these women will undergo invasive procedures. The remaining 21 to 34 abnormal screens will be true positives, indicating breast cancer. Some of these women will die of breast cancer in spite of mammographic detection and optimal therapy, and some may live long enough to die of other causes even if the cancer has not been screen detected. The number of extended lives attributable to mammographic detection is between two and six. Another expression of this analysis is that one life may be extended per 1,700 to 5,000 women screened and followed for 15 years. The same analysis for 10,000 women aged 40 to 49 years, assuming the same 500 abnormal examinations, results in an estimate that 488 of these will be false-positives, and 12 will be breast cancer. Of these 12, there will probably be only one to two lives extended. Thus, for women aged 40 to 49 years, it is estimated that one to two lives may be extended per 5,000 to 10,000 mammograms.
Source: National Cancer Institute
K.
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