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Taking low-dose aspirin is associated with 20% reduction in cancer deaths

142 points| geox | 2 years ago |cardiff.ac.uk | reply

79 comments

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[+] breadwinner|2 years ago|reply
This has to be balanced against this news: "Daily low dose aspirin increases brain bleeding risk by 38% in older adults." See: https://www.medicalnewstoday.com/articles/low-dose-aspirin-r...
[+] alejohausner|2 years ago|reply
Brain bleeding is very rare. That 38% number is a *relative risk ratio*. I'm always wary of studies that use such ratios to make an effect seem large. The following excerpts from the article you cited state:

For the study, the researchers analyzed data from 19,114 adults with an average age of 74 years old.

Altogether, 1.1% of those taking aspirin (108 individuals) experienced intracranial bleeding, while the same was true for 0.8% of those taking a placebo (79 individuals).

[+] tagrun|2 years ago|reply
It says in older adults.

This is a meta-study, touching on that "contrast" already: there is a subsection in the paper dedicated to this, where they claim that

"The major factor in cerebral bleeding however is hypertension, and in an RCT of aspirin based on more than 18,000 hypertensive patients—all of whom were receiving ‘optimal’ antihypertensive treatment—there were no additional cerebral bleeds in patients randomised to aspirin" (Refs 46 and 47).

which seems to be in contradiction with the article corresponding to the news you linked to: https://jamanetwork.com/journals/jamanetworkopen/fullarticle... and strangely doesn't cite or comment on Refs 46 and 47 from the paper of the main thread, possibly because they don't seem to be focusing on older adults.

There is also a subsection on gastrointestinal bleeding.

Intracranial bleeding isn't necessary something that cause permanent damage, or lethal by the way.

[+] enasterosophes|2 years ago|reply
Aspirin is also associated with gout. I'm not sure if the dosage required to worsen gout is lower than the dose discussed in the paper. I merely caution that anyone thinking about increasing their aspirin usage to prevent cancer should consult a GP first, since it's complicated, and anyone who has had gout probably doesn't want to increase their rate of flare ups.
[+] hammock|2 years ago|reply
Which is worse?
[+] nradov|2 years ago|reply
Yes, we need to see a long-term study of all cause mortality before recommending this intervention for primary prevention.
[+] darkerside|2 years ago|reply
100% reduction in cancer deaths in those with self inflicted gunshot wounds to the head
[+] Leary|2 years ago|reply
This is a meta analysis of observational studies. There's random controlled trial which showed all cause mortality was 14% higher for "healthy older adults who received daily aspirin than among those who received placebo"

https://www.nejm.org/doi/full/10.1056/nejmoa1803955

[+] noodlenotes|2 years ago|reply
The meta analysis is studying asprin as a cancer treatment, so the subjects were patients who already had cancer, not healthy adults taking it as a preventative. Daily asprin could both be bad for healthy adults and good for cancer patients.
[+] strangescript|2 years ago|reply
Probably more like lower inflammation reduces all cause mortality.
[+] ehnto|2 years ago|reply
I wonder if this is a reduction in mortality that was caused by an increase in chronic inflammation from modern life, stress and obesity.

In a healthy fit human, inflammation is a good thing, it is the body's construction and maintenance crew. Chronic inflammation is not good, but that is a side effect of an underlying issue (in my understanding so far)

[+] jjtheblunt|2 years ago|reply
There’s detailed but clear explanation in the paper that it’s doing anticancer things not related to reducing inflammation.
[+] kazinator|2 years ago|reply
People who are diligent to keep taking an aspirin pill day in and day out even though they are not sick are likely sufficiently worried about their health to also subject themselves to timely cancer screening.
[+] stvltvs|2 years ago|reply
This is a study of cancer patients, not the general population.
[+] didntknowya|2 years ago|reply
although indiscriminate long term aspiring can cause GI side effects
[+] 01100011|2 years ago|reply
Increases risk for hemorrhagic strokes as well. AFAIUI, your clotting ability is impaired, so if you get a minor bleed, it's not minor for long.

IIRC, the recommendations to folks taking aspirin for heart attack prevention is "don't, unless you've already had an ischemic event" because the risk outweighs the benefits for everyone else. That could change if we find new and/or unexpected benefits from low-dose aspirin.

[+] sdenton4|2 years ago|reply
Also addressed in TFA, it turns out. GI symptoms are pretty mild in the universe of cancer drug side effects, and the aspirin slows metastatic cancer spread considerably, so seems like a no brainer.
[+] Taniwha|2 years ago|reply
Only for some people, I've taken low dose aspirin (family history of heart attack) for 20 years now without any side effects (except perhaps not dying from heart attacks)
[+] downWidOutaFite|2 years ago|reply
I'm annoyed that the FDA has kept cox-2 selective inhibitors restricted when the data I've seen shows they have lower GI risks and similar cardiovascular risks as other NSAIDs.
[+] rgrieselhuber|2 years ago|reply
I've heard it's good to take with milk.
[+] foota|2 years ago|reply
But they told me to aim high!
[+] acangiano|2 years ago|reply
Silver lining to taking it after my heart attack.
[+] acheong08|2 years ago|reply
> The Welsh Aspirin Group in Cardiff University has published a systematic review…

Does this Aspirin group have any connections to producers? Is this an ad?

Im currently in Cardiff University. I wonder if I can just go and ask them about it

[+] RamblingCTO|2 years ago|reply
Are we microdosing aspirin now?

/e: on a more serious note, what @codevark was downvoted to oblivion for: I'd be interested in a comparison of the anti-inflammatory aspect of aspirin vs food/diet. Anyone got an idea?

[+] rhqq2|2 years ago|reply
Can I still drink alcohol and smoke weed everyday, and then take some baby aspirin to offset the increased probability of an early death?

Doubt it ;)

Cheers old buddies.

[+] 8f2ab37a-ed6c|2 years ago|reply
Now combine that with extra fiber and you'll practically live forever: https://news.ycombinator.com/item?id=38523805
[+] dhuk_2018|2 years ago|reply
Tomorrow's news will say it will be a 20% increase in some other desease...
[+] thrtythreeforty|2 years ago|reply
Depends on the disease, I might make the trade. Cancer is awful.
[+] smt88|2 years ago|reply
Aspirin is anti-inflammatory. A huge number of illnesses are caused or worsened by inflammation. Aspirin is likely to show benefit for a huge variety of conditions.
[+] dr-data|2 years ago|reply
Found it already! In today's news:

> Currently, a number of randomised trials which test aspirin and mortality are in progress. These focus upon the common cancers: colon, breast, prostate and one in lung cancer. One of these trials, based upon 3021 selected patients in remission from a HER2-negative breast cancer, has already reported [31]. This trial was ended prematurely because aspirin was associated with a possible increase of about 25% in deaths.