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Breast-Cancer Death Rate Drops Almost 40 Percent, Saving 322,000 Lives, Study Says (washingtonpost.com)

Breast cancer death rates declined almost 40 percent between 1989 and 2015, averting 322,600 deaths, the American Cancer Society reported Tuesday. From a report: Breast cancer death rates increased by 0.4 percent per year from 1975 to 1989, according to the study. After that, mortality rates decreased rapidly, for a 39 percent drop overall through 2015. The report, the latest to document a long-term reduction in breast-cancer mortality, attributed the declines to both improvements in treatments and to early detection by mammography. Deanna Attai, a breast cancer surgeon at the University of California at Los Angeles who was not involved in the study, said the advances in treatment included much better chemotherapy regimens -- developed in the 1980s and refined ever since -- that are administered post-surgery to reduce the risk of recurrence. Other improvements have included tamoxifen, an anti-estrogen agent that was approved in the late 1970s; Herceptin, a drug used to treat tumors with a higher-than-normal level of a protein called HER2 and drugs called aromatase inhibitors.

13 of 64 comments (clear)

  1. Not 40% Improvement for the Same Diagnosis by crow · · Score: 3, Interesting

    If I read that correctly, this means that of all the cases reported now, the overall odds of death have dropped 40% compared to all the cases reported thirty years ago or so. That doesn't mean the odds of survival for a given diagnosis have improved 40%. One reason cited was the increased early detection through mammograms, so clearly some of the improvement is from shifting the average diagnosis to a less severe tumor. This raises the issue of tumors that are now detected which in the 70s would have gone unnoticed, and wouldn't have progressed, but are now detected and removed. (I'm not an expert, but I read on the Internet that this is an issue, so it must be true.) If you take that into account, it may pull down the overall percentage a tick.

    In any case, it's clearly good news, but I've still lost a friend from breast cancer, but I'm hopeful that another will survive. I'm looking forward to what the next decade or two bring with better understanding of the genetic differences of specific cancers and vaccines or other drugs designed to target those differences.

    1. Re:Not 40% Improvement for the Same Diagnosis by jbengt · · Score: 2

      If you just created a test that detected cancer earlier than 5 years before death, it would have a 100% survival rate. That makes all the numbers they throw out meaningless.

      Except that the mortality statistics cited in the study are for deaths caused by breast cancer per 100,000 females in the overall population, not deaths per 100,000 diagnosed patients. The incidence of in situ and invasive breast cancer diagnoses has flattened out in recent years but still has an upward trend, while mortality rates have gone down.

    2. Re:Not 40% Improvement for the Same Diagnosis by bws111 · · Score: 2

      It doesn't appear that they are talking about a 40% improved survival rate for diagnosed cases. They are looking at deaths caused by brreast cancer in the general population, and that rate is 40% lower than it was.

    3. Re:Not 40% Improvement for the Same Diagnosis by crow · · Score: 2

      Thanks!

      So that does take into account any increase in diagnosis of cases that would not have been fatal, and it also takes into account any decrease due to changes that reduce the overall incidence, such as reduced smoking.

      Still, no matter how they came to the number, it's impressive.

  2. Thankful by American+AC+in+Paris · · Score: 3, Insightful

    Without these advances, my wife would likely have died of this disease. Instead, she's alive, and despite the fact that breast cancer survivorship is no walk in the park, she's still able to do most of what she did before.

    It's incredible how much medical science has advanced on breast cancer since the late 80's. I hope the research keeps its momentum.

    --

    Obliteracy: Words with explosions

    1. Re:Thankful by Anonymous Coward · · Score: 2, Informative

      And as a counter-point to this: My wife died two years ago from breast cancer that eventually came back and spread to her brain. She was originally diagnosed at 34 and died at 39. It came back just about three years after her initial diagnosis and double mastectomy. It came back in her lungs initially and we did everything we could, including medical trials for new drugs, and monthly trips to M.D. Anderson.

      The moral of this story is that the new medical advances testing such as mammograms don't do any good when doctors start applying them at an arbitrary age. In my late wife's case the standard age of "start getting tested at 40" was six years too late. We had several doctors at M.D. Anderson tell us that they felt mammogram testing should start much earlier.

      Don't wait until 40.

  3. Re:They don't save any live ... by jellomizer · · Score: 2

    In Medicine, a success is having the patient die from a condition that you didn't try to treat,

    --
    If something is so important that you feel the need to post it on the internet... It probably isn't that important.
  4. Re:They don't save any live ... by Ol+Olsoc · · Score: 5, Informative

    Ok, now that we have success with breast cancer, how about time and funds for prostate cancer....you know, to keep things even.

    ;)

    If you had to prioritize, you would in all cases go for breast cancer first. Except for the much fewer cases of aggressive prostate cancers, you have something that kills more people.

    Many men die of old age while having prostate cancer.

    The more important issue of treating prostate cancer is the number of false positives, which lead to unneeded operations, and often some pretty nasty outcomes. A husband of one of my wife's friends was diagnosed, and the doctor and the wife demanded a really aggressive approach. Today, he is impotent and wears adult diapers because he has no bladder control. He said death wasn't a bad alternative to that.

    --
    The shepherds did so well protecting the flock that the sheep no longer believed that wolves existed.
  5. 3 time survivor by Anonymous Coward · · Score: 5, Interesting

    Over the past 30 years, my wife has survived breast cancer 3 times. All three occurrences were classified as new primaries. The third time was HER2 positive, which meant chemo for a year. The first six rounds were classic chemo plus Herceptin, followed by another 8 rounds of Herceptin only. She has also been on tamoxifen for the last 5 years. The first two occurrences were early enough that the HER2 factor wasn't even discovered. Thankfully, it seems that neither of the first two were HER2 positive anyway, as both were not as aggressive as the third. The key in all three cases was early detection. I noticed a comment above about delaying fate. In a way this is true, in that she will be able in the future to die of something other than breast cancer. In the mean time, we get to enjoy retirement together. Modern medicine has kept us both alive, as I am around thanks to a triple bypass.

  6. Re:They don't save any live ... by michelcolman · · Score: 2

    The reality? We've hardly advanced at all with treating or curing cancer; we've just started looking for it earlier.

    It's probably even worse than that. Cancer death rate is the number of cancer deaths divided by the number of diagnosed cancers. But it's a well known fact that a large number of diagnosed cancers are false positives or are at least benign enough to be unlikely to actually become the cause of death. People can live with such a "cancer" for decades and end up dying from something else. This means that increased screening automatically increases the denominator of the cancer rate and therefore reduces the rate even if the number of deaths remains the same.

    That doesn't mean we haven't made any progress at all, of course. I sure hope we've decreased the nominator as well. But it does make the 40 percent figure rather less impressive. I'm actually quite surprised that we haven't done better with all these cancer "breakthroughs" we keep hearing about in the media.

  7. Why is black-white disparity "unacceptable"? by blindseer · · Score: 4, Insightful

    Still, the remaining black-white disparity âoeis not acceptable,â said Lee Schwartzberg, a medical oncologist at West Cancer Center in Germantown, Tenn. He said the gap reflects complicated social, economic and biological factors that are not yet fully understood, including insurance and employment status. In addition, black women are twice as likely as white women to develop so-called triple negative breast cancer, which can be harder to treat, the report noted.

    They do a study and find that people with African ancestry tend to have a kind of cancer that we don't yet know how to treat. What if this disparity was found between people from Angola vs. Kenya? Would this be "unacceptable? What if it was between Greeks and French? Would that be "unacceptable"? They can call this "complicated" all they like but the reason that this one group tends to have higher rates of deaths from cancer is clear from the paragraph I quoted, it's genetic. There's nothing we can do about one's genes.

    It seems obvious they know the reason why the disparity exists, it's genetic. However, when we equate this disparity to race instead of genetics then it becomes "unacceptable" to people. It's unfortunate that we cannot treat this "triple negative" cancer better. Research into treating this cancer should continue, as should treatments for all kinds of cancer. Seeing this as a matter of race instead of genetics turns a problem of medicine and science into a political issue.

    Can we leave politics out of science? Please? Politics ruined football. If sanity is not regained then politics will ruin everything.

    --
    I am armed because I am free. I am free because I am armed.
    1. Re:Why is black-white disparity "unacceptable"? by thesandtiger · · Score: 2

      Bzzt, wrong answer.

      A friend of mine does public health work, specifically around cancer and outcomes, with a number of hospitals directly and with data from a great many more.

      One of the interesting things they've found is that outcomes are greatly influenced by one's socio-economic status even when people are able to get the same treatment. Why?

      Because having cancer - actually dealing with it, getting treatment for it - is complicated. Keeping on top of myriad appointments, following through on issues with insurance, basically just working with the system, is hard for people who a) have a fundamental distrust of a system that hasn't worked well for them and b) don't know enough about this particular system to navigate through it. Patients from poorer backgrounds were less likely to advocate for themselves than patients from more affluent backgrounds, and would ultimately lead to an increased mortality or worse outcomes for people in the less affluent group.

      In one hospital, they addressed the problem by getting volunteers who had been through the process (either as a survivor or partner of someone who had cancer) to help them navigate through this complex process and let the patient focus instead on getting well. Lo and behold, outcomes improved - not to the same level (there were factors outside of treatment that impacted survival - such as stress), but substantially.

      To say that the difference is purely biological is frankly uninformed. Sorry, chum, but when you're dealing with science that is heavily human involved, politics in fact are important considerations. And, based on the improvements in outcomes (and resultant policy changes to try and provide more assistance), I'd say in this case that politics has HELPED rather than hindered.

      "Politics" is EXTREMELY relevant to medical outcome, and the fact that you were voted 5 for your comment just makes it it clear that there are a great number of people who have no idea what they're talking about, to the detriment of others.

      --
      Since I can't tell them apart, I treat all ACs as the same person.
  8. Re:They don't save any live ... by bws111 · · Score: 3

    I don't know where you got your definition of the cancer death rate, but it is not what they used. They looked at how many deaths from breast cancer there were per 100,000 women (NOT per 100,000 women with breast cancer). That number is 40% lower than it was. I don't know how you can spin that as 'unimpressive'. It doesn't matter if the decrease is because of better treatment, or early detection, or simply not getting breast cancer in the first place (which of course would be the ideal).