Statins have a long list of potentially very serious side effects, as you probably know (including muscle tissue damage, diabetes, and even cancer). I just read the other day that almost half of all patients who start taking statins quit taking them within the first year or so, mainly due to muscle pain (that is one reason you don't see too many studies on the long-term effects of statins.......many statin users drop out of those studies early due to statin side effects). The only potentially serious side effect with aspirin is a small risk of GI bleeding. I don't want to minimize that risk, as it can be serious, but a relatively small number of people taking the low-dose aspirin experience any GI bleeding.
I would personally take a daily low-dose aspirin (which, by the way, has been shown to reduce the risk of colon cancer, also) before I ever took a statin drug. But again, that's my decision based on the research I have done........YMMV.
Anyone who is getting the impression that low dose aspirin is a better way to prevent CVD than statins should consider the following:
Studies released in 2018 have shown that older adults (whites 70 and older and blacks/hispanics 65 and older) do not have cardiovascular benefit from low dose aspirin, and in fact they have an increased risk of bleeding, not only in the GI tract, but also in the brain. For this reason, the current AHA/ACC Guidelines have significantly limited who they recommend aspirin for:
"For decades, low-dose aspirin (75-100 mg with US 81 mg/day) has been widely administered for ASCVD prevention. By irreversibly inhibiting platelet function, aspirin reduces risk of atherothrombosis but at the risk of bleeding, particularly in the gastrointestinal (GI) tract. Aspirin is well established for secondary prevention of ASCVD and is widely recommended for this indication, but recent studies have shown that in the modern era, aspirin should not be used in the routine primary prevention of ASCVD due to lack of net benefit. Most important is to avoid aspirin in persons with increased risk of bleeding including a history of GI bleeding or peptic ulcer disease, bleeding from other sites, age >70 years, thrombocytopenia, coagulopathy, chronic kidney disease, and concurrent use of nonsteroidal anti-inflammatory drugs, steroids, and anticoagulants. The following are recommendations based on meta-analysis and three recent trials:
Low-dose aspirin might be considered for primary prevention of ASCVD in select higher ASCVD adults aged 40-70 years who are not at increased bleeding risk.
Low-dose aspirin should not be administered on a routine basis for primary prevention of ASCVD among adults >70 years.
Low-dose aspirin should not be administered for primary prevention among adults at any age who are at increased bleeding risk."
The latest studies also have not shown a reduction in cancer deaths from low dose aspirin, in fact they have shown a surprising increase in cancer deaths.
Here is a link to the larger article:
https://www.acc.org/latest-in-cardi...guideline-on-primary-prevention-gl-prevention
Of note, AHA/ACC Guidelines recommend statins for prevention of CVD in much larger groups of patients than they recommend low dose aspirin.
I hope anyone considering whether or not to take aspirin (and statins) for CVD prevention makes their decision based on consultation with their doctor, making sure that the doctor is considering the current ACC/AHA Guidelines as unfortunately some doctors are slow to incorporate new information into their practice.