SAMe-TT₂R₂ Score

Warfarin Suitability Score for Atrial Fibrillation

S — Sex (female)

A — Age <60 years

Me — Medical history (≥2 comorbidities) HTN, DM, CAD, PAD, prior stroke, pulmonary disease, hepatic or renal disease

T — Treatment interaction Rhythm control drugs that interact with warfarin (amiodarone, digoxin, etc.)

T₂ — Tobacco use (within 2 years)

R₂ — Race (non-Caucasian)

Total Score 0

Warfarin Suitability Good candidate for warfarin

Score 0-2: Likely to achieve good anticoagulation control (TTR ≥65-70%) on warfarin.