Quality of oral anticoagulation control in Chinese patients with non-valvular atrial fibrillation: a prospective controlled study.

Current Medical Research and Opinion
Yaqian LiGuoping Yang

Abstract

The sex, age, medical history, treatment, tobacco use, race risk (SAMe-TT2R2) Score; the sex, age, medical history, treatment, tobacco use, genotype combination (SAMe-TT2G2) Score; and the so-called modified SAMe-TT2R2 scores have been proposed to predict the anticoagulation quality for patients with non-valvular atrial fibrillation (NVAF). The data from a prospective controlled study is used to validate the SAMe-TT2R2 and SAMe-TT2G2 scores in Chinese NVAF patients treated with warfarin and to evaluate the association of factors with time in therapeutic range (TTR) to predict the quality of oral anticoagulation control. A total of 379 patients with NVAF under warfarin treatment for a three-month follow-up were included in this prospective, multicenter study. The quality of oral anticoagulation control was evaluated by the TTR. The TTR was dichotomized for binary logistic regression analysis, using a cutoff point for classification as an inadequate (TTR < 65.0%) control. The 379 NVAF patients had a mean TTR of 58.35 ± 26.33% and median SAMe-TT2R2 and SAMe-TT2G2 scores of 3 and 2, respectively. The discrimination performances of the SAMe-TT2R2 and SAMe-TT2G2 scores for inadequate anticoagulation control (TTR < 65.0%) were poor (c...Continue Reading

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