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What do systematic reviews say?

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Evidence found and GRADE certainty

5 questions · 7 findings · 3 reviews · Headline outcomes only

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No studies found 1 · 14.3%GRADE not reported 0 · 0%Very low 4 · 57.1%Low 1 · 14.3%Moderate 1 · 14.3%High 0 · 0%

clopidogrel plus aspirin vs aspirin

All‐cause mortality · people with coronary disease, ischaemic cerebrovascular disease, peripheral arterial disease or at high risk of atherothrombotic disease

clopidogrel plus aspirin showed no clear difference in all‐cause mortality compared with aspirin alone (low certainty).

1 finding from 1 review

Aspirin vs vitamin K antagonist (VKA)

All‐cause mortality · ambulatory patients with multiple myeloma receiving immunomodulatory agents

It is very uncertain whether aspirin (ASA) changes all‐cause mortality compared with vitamin K antagonist (VKA) (very low certainty).

2 findings from 1 review

Aspirin vs low molecular weight heparin

All‐cause mortality · ambulatory patients with multiple myeloma receiving immunomodulatory agents

It is very uncertain whether aspirin (ASA) changes all‐cause mortality compared with low molecular weight heparin (LMWH) (very low certainty).

2 findings from 1 review