VKORC1-1639A Allele Influences Warfarin Maintenance Dosage Among Blacks Receiving Warfarin Anticoagulation: A Retrospective Cohort Study
Copyright policy )VKORC1-1639A Allele Influences Warfarin Maintenance Dosage Among Blacks Receiving Warfarin Anticoagulation: A Retrospective Cohort Study
The study objectives were to investigate the association between selected CYP2C9 and VKORC1 single nucleotide polymorphisms with serious bleeding or thrombotic risk, and to estimate mean daily maintenance dose of warfarin and international normalized ratio measurements among Blacks receiving warfarin anticoagulation.We conducted a retrospective cohort study among 230 Black adults receiving warfarin for a minimum of three consecutive months with a confirmed date of first dosage.A lower mean daily maintenance dosage of warfarin was required to maintain an international normalized ratio measurement within the therapeutic range among Blacks with the VKORC1-1639G>A variant alleles ([G/A vs G/G, p = 0.02], [A/A vs G/A, p = 0.008] and [A/A vs G/G, p = 0.001]).Data indicated that VKORC1-1639A variant allele influenced warfarin daily maintenance dosage among our small, likely admixed Black patient population.
- Emory University United States
- Centers for Disease Control and Prevention United States
Male, Georgia, Time Factors, Dose-Response Relationship, Drug, Genotype, Incidence, Anticoagulants, Thrombosis, Middle Aged, Polymerase Chain Reaction, Polymorphism, Single Nucleotide, Black or African American, Vitamin K Epoxide Reductases, Humans, Female, Warfarin, Alleles, Follow-Up Studies, Retrospective Studies
Male, Georgia, Time Factors, Dose-Response Relationship, Drug, Genotype, Incidence, Anticoagulants, Thrombosis, Middle Aged, Polymerase Chain Reaction, Polymorphism, Single Nucleotide, Black or African American, Vitamin K Epoxide Reductases, Humans, Female, Warfarin, Alleles, Follow-Up Studies, Retrospective Studies
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