Table 1 Patient characteristics

Total number of patients (M/F)

100 (70/30)

Age (years)

64 (31–80)

Body weight (kg)

63.8 (34.9-92.6)

Initial INR

1.76 (1.03-2.64)

Warfarin maintenance dose (mg)

3.0 (1.0-7.0)

Warfarin loading dose (mg)

5.0 (1.0-9.0)

Number of patients treated with vitamin K₂

76

Total dosage of vitamin K₂ (mg)

40 (20–70)

20 mg

19

30 mg

2

40 mg

35

60 mg

19

70 mg

1

Total bilirubin concentration (mg/dL)

0.7 (0.3-1.7)

Serum albumin (g/dL)

4.3 (3.6-5.0)

Serum creatinine concentration (mg/dL)

0.8 (0.5-9.6)

Estimated glomerular filtration rate (mL/min/1.73 m²)

67.7 (5–120)