Cancer Math
Hello, ladies. I am a caregiver/ husband. I have been lurking since my wife's diagnosis and have finally decided to post. I hope I am welcome here. I do not mean to trespass. I have unfortunately paged 'Dr. google' and am admittedly disappointed in many of the statistics associated with my wife's diagnosis. I am aware that we are all individuals and our respective cancers are our own and that we are NOT statistics. I am also aware that much of what is out there is old data and not stratified to more specific pathologies. BUT... When I plug data into Cancer Math or Predict----I find such favorable (relatively speaking) prognoses that it's hard to believe. How can prognoses be so grim in so many articles, yet so encouraging on Predict and Cancer Math? Even when taking into account the caveats/ confounding variables of 'old data' or newer treatments (have things REALLY changed that much for ER+ patients for there to be such a dramatic swing in prognoses? Case in point---I read where 10 year disease free survival for 1-3 positive nodes is 30-40%, yet Cancer Math gives my wife barely a 5% risk for death from cancer at 15 years.)
IS Cancer Math legit?
How can these numbers be SO off from each other?
Please, someone enlighten me.
I thank you wonderful folks in advance for considering my query.
Comments
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You are not trespassing! I am sorry to hear about your wife's diagnosis. Everyone who finds their way here is welcome.
First off, I notice your wife is ER positive. Did she have the OncotypeDX test? That test which is based on your wife's tumor's genes is probably the most accurate at predicting distant recurrence at 10 years. My score of 15 meant that I had a 10% chance of distant recurrence at year 10. Cancer math said I had less than a 3% chance of dying from breast cancer within 15 years. My chances of dying in that time period is greater than 10% from other illnesses.
Looking at your wife's signature, it appears that with an ER positive, grade 1 tumor, she should do well. Try not upsetting yourselves by focusing on percentages. The bottom line is newer treatments are developed frequently, so those statistics become less meaningful over time. For example, a study just concluded that a patient could take tamoxifen longer and decrease their chance of recurrence in the double digits ( relative risk) than if they took it for the customary 5 years.
I wish both of you well. -
Thank you so much. We did not have the oncotype dx primarily because it wasn't going to affect the tx recommendation from either oncologist we consulted with. Our 2nd opinion was at MSK.
We got the 'you're young, so you can survive the AC + T and with the positive node, you should do it' line of reasoning.
I think more information is good, though if it's not going to impact a treatment decision, maybe it's of somewhat less use to us.
Thank you for the warm welcome.
God bless you. -
Colt - remember, when you read a stat about a 10 year survival rate, that means those women were treated with 10 year old treatments. Yes, things have definitely changed that much in 10 years. I was dx 5 years ago, and I'm amazed how much things have changed in just that short a period of time. My mom died of b/c in the 70's, and when I compare my treatment to hers, it's like they were treating a whole different disease. Her treatment was state of the art at the time, yet it seems so primitive now! So take any long term studies with several grains of salt.
FWIW, your wife's dx sounds a lot like mine, except that I had a Grade 3 tumor so I was in a slightly worse position statistically. Yet when I finish my 5 years of Femara this summer, my onc has said that at this point, my risk of dying from heart disease is greater than my risk of dying of b/c. It's not that I'm at any special risk for heart disease - women in general are more at risk of death by heart disease at my age (57), and at this point my risks are back to those of the general population.
As voracious says, don't get too hung up on those calculators and studies. Your wife can talk to her onc about things she can control - such as exercise, which has been shown over and over again in studies to reduce recurrance. At my onc's strong recommendation, I exercise 30 minutes a day 6 days a week - running, yoga, elliptical, hiking, strength training, etc.. As a matter of fact, I was never a runner before dx, but I've enjoyed getting into running so much that now I'm training for my first half marathon. Training for a race like that is not easy, but hey - I went through chemo - I can do anything after that!
My husband was a wonderful concerned partner - much like you sound. Having your wife's back through all of this is the best gift you can give her, and will give her more strength and courage that you'll ever know.
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I guess I'm just generally surprised/ disappointed in what I consider a gross lack of understanding that we have of breast cancer.
I was reading an interview with Melissa Etheridge, who got treated for stage 2 with a positive node back in 2004----and her reaction to (what I assume was) treatment options was: "this is all we have?"
I understand that it's a lot of unique diseases and not just 1 disease---but it seems like we're just now finding some elementary things out... as if this breast cancer thing was new. It's disappointing.
And then you get these disheartening statistics for survival (I know, I know-----stop reading that crap) and the popular opinion seems to be that it's outdated data and/ or it isn't YOUR cancer.... BUT it's SOMEBODY'S node-positive cancer that made it to that data bank.... and those stats look awful.
I guess I can't help but go back to my initial question: Is Cancer Math legit? I play with the numbers to make the patholgy worse and STILL the outcomes are markedly more favorable than so much of the published survival stats out there.
There is a discordance with tools like Predict and Cancer Math vs what you get when you search survival statistics for breast cancer.
And the chasm between the conflicting stories is WIDE.
I'm struggling with this.
I am aware of newer treatments coming out----but the Tamoxifen use being extended to 10 years is really recent (Dec'12?), so that doesn't help explain why Cancer Math paints such a far better picture odds-wise for ER+ cases. I WANT to trust Cancer Math over the scarier statistics----I mean I read some of that stuff and am like: "Geezus, what awful crap". Why are Cancer Math's probable outcomes SO much more favorable? The discordance vexes me as it does NOT instill faith in me that our best and brightest minds working this breast cancer case know what they are talking about.
I am sorry to be going off like this, but I love my wife and hate anything that threatens her. Especially when I feel so powerless to help.
Please help me understand more.
Voracious reader was so nice to try and help (and you did help)... I have so much respect and love in my heart for all of you here.
I'm just angry and confused. -
Thank you SO much, NatsFan. I am a NatsFan fan. I noticed when I 1st started lurking that your dx was similar... and I have been 'checking in on you' (not to be creepy)... God Bless you for caring about me and my wife.
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@colt45--I've just re-read your original post, and, in addition to the points already raised, it prompted another question. Are you sure you are comparing "apples to apples"? Did Dr Google's patients with 30-40% survival get the same treatment as the ones in cancermath? Were the data for deaths from cancer only, or from all causes? Were the patients in Dr Google's data the same age, stage and hormone status as your wife? One more thing, how old is your wife? That is an important factor in survival statistics. I ask because I put as much of your wife's info as I could glean from your profile into cancermath. I didn't know her age, so I had to guess--and, using the basic breast cancer calculator, 10 year mortality rates were lower than 30% for all ages (that I checked) under 70. Even at age 70, the 30% mortality rate was from all causes, not breast cancer, only, and statistically speaking more of those deaths would be expected to be from other causes than from breast cancer.
But to respond to your main question, in my opinion, yes, the cancermath calculator is very legit. It was developed by the Laboratory for Qualitative Medicine at Mass General Hospital. "Dr. Google" gets data from heaven only knows who, where, or when. If cancermath and "Dr Google" have conflicting results, I think cancermath is much more likely to be right than Internet information of unknown source, date or reliability.
I put my own diagnostic data into cancermath and got essentially the same information my oncologist gave me from Adjuvant!online. I had not seen the Predict calculator before, but I just put my own data in and got quite similar results. Again, if Adjuvant!online and Predict and cancermath all say one thing, and "Dr Google" says another, I know which answer I think is right.
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Remember too that Cancermath provides you with the probabilty of being alive in ten years. This is not the same as being alive without a recurrence (or disease-free). Many women have local recurrences but still survive but would not be considered alive without a recurrence or disease-free.
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Colt.. Again, I think most of the survival statistics that you compare to cancer math is based on old data. Again, the Oncotype DX test is the most precise. Personally, I dismissed most of the data because none of the statistics are as accurate for my rare type of BC as they are for the more common types. Despite whatever your treatment plan is, the Oncotype DX score would probably be a good idea to have, especially since it's now included in the NCCN guidelines.
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Curveball,
My wife is 41. And 'no', Dr. Google didin't stratify the cases as precisely as Cancer Math... but the disparity in risk was SO marked. I tried to make the pathology worse on purpose on Cancer Math to see what it would take to get a low like-survival rate----and I couldn't. Cancer Math just wouldn't give me a similar risk to Dr. Google....without completely changing the pathology. I understand that disease free survival and survival from a cancer related death are different----but Cancer Math gives me as low as a 5-6% death from cancer at 15 years (in the therapy outcome mode) and I would just assume that if the risk of dying from cancer is 6% at 15 years, that the risk of NOT being disease free at 10 years would be better than 60-70%. I dunno.
PREDICT's risk calculations DO jive with Cancer Math's. Dr. Google doesn't mention therapy. But then I ask myself: WHO are these people NOT having treatment that Dr. Google is using for survival stats? Surely Dr. Google's sample has people doing treatment, no?
If NOT, how horribly and unnecessarily terrifying is it to say " 'X' % of people with 1-3 positive nodes are not disease free at 10 years". If that is what is happening, shame on these articles for terrifying us!
I am terrified for my wife. We have 2 young children. I'd like to believe Cancer Math. The stats on the net are too scary to want to believe, but they came from somewhere.
I want to thank everyone for helping me with this. What you are saying is making sense to me---but I hope it's not just because I really want it to.
I have much to learn. I welcome any and all help. You've given me a lot to consider. -
Here's another thing I was wondering... If Cancer Math is predicting risk 15 years out, then aren't they using data that is 15 years old? How long has Cancer Math been around? How long has dose dense chemo been used the way their 'therapy outcome' mode offers as choices on the menu? Anyone know?
I appreciate the oncotype dx avenue, Voracious.
At this point I might be more scared to know, because treatment for us is what it's going to be.
Of course, I just keep torturing myself with these probing questions about Cancer Math, though, don't I?
Ugggh. Forgive me, ladies. My mind is just racing with this crap.
Bless you all. -
Colt - nice to meet another Nats fan! I can't wait for Opening Day after such a great season last year, and this year promises to be even better!
Thanks for "checking in" - when I was first dx I took a lot of comfort when I found women here who matched my profile who were years out and thriving, so I certainly understand that urge.
Yes, you are terrified - for your wife, for your kids, for the quality of life you have now. And you feel totally helpless - a horrible feeling. But I think you're looking for definite answers that simply aren't there. I also spent a lot of time initially trying to get answers about 1 year out, 5 years out, etc. But as the weeks and months passed, I realized that all I was doing was stressing myself out, and I was never going to find the certainty I was looking for. And I was spending a lot of time worrying about something that might not ever happen.
Another husband with a b/c wife passed along something to my husband that helped us immensely - "Don't go there until you get there." Meaning, deal with what you have going on now, and don't spend time worrying about things down the line that might never happen. It made so much sense to both of us, and we pretty much have adopted it as our mantra. Think of it this way - if the worst never happens, then you've thrown away hours of your life worried and stressed about something that never even happened. And if the worst does happen, deal with it then. If it's going to happen, worrying about it now won't prevent it, and all those precious hours spent worrying were hours you could have been spending with your wife and kids.
"Don't go there until you get there" is an easy concept that is really hard to do - I know that the mind tends to go to sinister quickly, especially in the beginning. But the more my dh and I tried to work through not going there till we got there, the easier it got to really practice that. If one of us started going too far down an unknown road, the other could pull us back just by saying, "Don't go there until you get there." I know you want facts. I know you want something definite that after your wife finishes active treatment her chances are good. Well, you know that already - her chances are good. Oncologists rely on Adjuvent Online and CancerMath because those can be tailored for a specific patient. As curveball says, the studies you're reading may be from patients from different countries with poor medical care, patients who got older treatment, patients who may not have been compliant or may not have been able to afford good care.
I don't mean don't research - you probably will always want to keep an eye on the latest treatments and developments in breast cancer. But trying to realistically predict your wife's recurrence and survival chances through Dr. Google is simply not going to happen, no matter how much you want it to. So for your sake and your family's sake, please stop frightening yourself with Dr. Google. You're not going to find the answers you're looking for, and all you're doing is stressing yourself out.
Sorry for the long post, but I really do understand your terror as I was much the same way. Learning to live with with uncertainty is one of the hardest things about a cancer diagnosis, and it takes time. Hang in there - it really does get better.
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NatsFan,
Thank you, again. It's a tough balancing act (as everyone here knows better than I) to think just enough about our situations to ensure we're being diligent with treatment and recovery WITHOUT thinking about the stuff that does us no good to think about.
I hope it doesn't bother anyone when I say 'us' or 'our' when it's my wife's breast cancer, not mine. It's just how I talk. I think it helps my wife, so that is my mind set. When we consulted with the breast surgeon, I took notes and referred to my wife as 'we'. The BS stopped talking to tell me she liked that. Then I did the same thing at our 2nd opinion Onc consult at MSK----and the Onc said the same thing as the BS did. I don't want to offend anyone here with that way of talking. I understand that I am not you and I am not my wife. I want the same as you, but I have a different kind of pain. Forgive me for wandering off base there....
Mary, I didn't say I was a Nat's fan. I am a Nat'sFan FAN----I am a fan of YOU.
Thank you so much for your comforting words. They are precious to me right now.
Thank you all. -
Awww - thanks. :::blushing:::
Personally, the "we" doesn't bother me a bit. Yes, I had the cancer, but it's not like my dh wasn't going through his own hell, too - so yes, we both had a cancer experience.
I think in some ways it's worse to be the caretaker. A year after active treatment was done, my dh came down with a sudden life-threatening condition. We joked that it was quite a switch for him to be up on the exam table with the doctor going over him while I sat in the corner taking notes! I was so nervous before all my own my surgeries, but nothing matched the sheer terror and helplessness I felt when they wheeled him off for his surgery. Fortunately his surgery was a complete success and he's fine now, but having such a quick turnaround in our patient-caretaker roles really gave each of us insight into what the other person had experienced. Let's just say, neither role is fun . . .
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@ curveball hi I did the cancer math also. I put in I had a recurrence. It would not allow me to put after 12 yrs so I put 9 years. I am TN . I put negative nodes. Grade 3. Chemo ACT. the response was hard to believe also like colt45 says. Also I wonder why it did not allow me to put 12 yrs before my recurrence. I could not put 2 digits. I am 48. TN. Clear nodes. ACT chemo. Add rads too that but they dont ask. Local recurrence. What do you think ?
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Hey, Netty46...
I think Cancer Math has some limits on their menu ranges----I.e., max # of positive nodes is 10, max size of tumor is 5cm, max time elapsed with no recurrence is 9 years (to calculate remaining risk) max age to calculate risk 15 years out is 85 (I think). Perhaps they haven't validated outcomes outside those ranges.
If the risk they gave you seems too good to be true----I understand. I hope we all just have great odds if that's the case. I hope that's what it is. But that would mean much of what you can search for regarding survival stats is profoundly inaccurate. Personally, I hope that's the case. It could be. It just seems a little crazy that such inaccurate information goes largely unchallenged/ uncorrected and is permitted to remain out there and scare the crap out of us---if it is indeed Cancer Math that is to be trusted. -
Don't go there UNLESS you go there.
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I went there. Now I'm freaking out. It gives me a 49.9% chance of being dead within 15 years. I'm only 37. I have little kids. I won't even make it to retirement.
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Make sure you use the treatment calculator on the Cancer Math site. It makes all the difference. I tried to plug your data in and I came away with MUCH better odds for you. Also, try the PREDICT cancer tool. It's a UK based calculator and it 's particularly good for HER2 + diagnoses.
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If you use PREDICT make sure you put your tumor size in mm - not cm. Just multiply your cm by 10 for the correct number.
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