Table 3 Percentage of time in therapeutic range (1.8–3.2) after stratification by valve position.

From: Genotype-guided warfarin dosing may benefit patients with mechanical aortic valve replacements: randomized controlled study

 

Aortic valve

Mitral valve

Genotype-based dosing group (n = 16)

Standard dosing group (n = 18)

P-value

Genotype-based dosing group (n = 20)

Standard dosing group (n = 23)

P-value

Traditional method (%)

First 1 week

58.5 ± 10.1

38.1 ± 26.8

0.009

44.6 ± 23.5

39.6 ± 21.9

0.477

Hospitalization

55.8 ± 14.0

41.4 ± 24.5

0.042

41.1 ± 21.6

36.9 ± 21.9

0.527

Until first outpatient visit

52.1 ± 15.2

39.2 ± 20.0

0.047

43.5 ± 19.8

37.1 ± 21.7

0.327

Rosendaal method (%)

First 1 week

64.0 ± 12.3

44.6 ± 27.3

0.012

53.4 ± 22.5

46.9 ± 23.2

0.369

Hospitalization

60.5 ± 14.3

45.4 ± 25.7

0.041

47.9 ± 22.9

44.0 ± 23.4

0.581

Until first outpatient visit

53.3 ± 22.8

46.2 ± 23.7

0.387

53.5 ± 25.4

48.2 ± 27.1

0.513