Interactive worksheet
SAMe-TT2R2 Score Calculator
SAMe-TT₂R₂ Score: Explanation and Clinical Context The SAMe-TT₂R₂ score is a validated clinical tool to predict the quality of warfarin anticoagulation control in patients with atrial fibrillation. It integrates demographic and clinical factors including sex, age, comorbidities, concomitant interacting drugs, tobacco use, and race. A score of 0–2 predicts likely good anticoagulation control (time in therapeutic range