The AFNOR study used mandatory national registry data to identify first stroke admission or death in Norwegians aged 15 and over from 2001 to 2021. Ischaemic stroke in people with atrial fibrillation did not fall, and rose in those aged under 65; 69% of these strokes occurred without anticoagulation. Intracerebral haemorrhage in people with atrial fibrillation rose among those aged 75 and over, driven by anticoagulated patients.
Why it is interesting: The two-decade decline in stroke did not reach atrial fibrillation, where most strokes were in unanticoagulated people.
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