Table 1.
Variables | |
Demographic variables | N = 985 |
Age, mean (SD), y | 60 (15) |
Gender: | |
Women, N (%) | 486 (49.3%) |
Men, N (%) | 499 (50.7%) |
Race: | |
Caucasian, N (%) | 772 (78.4%) |
African-American, N (%) | 180(18.3%) |
Asian or East Indian, N (%) | 3(0.3%) |
Other or Unknown, N (%) | 30 (3.0%) |
Clinical variables | |
Therapeutic warfarin dose, geometric mean (SD), mg/d | 4.8 (1.6) |
Target INR, mean (SD), units | 2.3 (0.4) |
Body surface area, mean (SD), m2 | 2.0 (0.3) |
Current smoker, N (%) | 140 (14%) |
Takes amiodarone, N (%) | 33 (3%) |
SD = standard deviation; INR = international normalized ratio