Warfarin (target INR 2-3) vs Aspirin 75mg daily
Polypharmacy guidance: realistic prescribing
Study population:
Age > 75yrs with AF
Comments:
Mean age of patients prescribed warfarin was 81.5 years.
73% of patients had a CHADS2 score of 1-2.
67% of patients on warfarin remained on this treatment for the complete duration of the trial.
| Outcome | Duration | NNT | Annualised NNT |
|---|---|---|---|
| 1st occurrence of fatal or non fatal disabling stroke (ischaemic or haemorrhagic), other intracranial haemorrhage or clinically significant arterial embolism | 2.7 years (mean duration of followup) |
20 |
54 |