Table 2 Comparison between two groups with INR > 4 and ≤ 4 within 5 days of titration.

From: Chinese stroke patients with atrial fibrillation used Robert's age-adjusted warfarin loading protocol obtained good INR results within therapeutic range

Parameter

All patients (n = 94)

Patients with INR ≤ 4 (n = 77)

Patients with INR > 4 (n = 17)

P

Age (years)

67.9 ± 11.6

68.2 ± 11.8

66.6 ± 11.6

0.942

 ≤ 50

7 (7.5%)

5 (6.5%)

2 (11.8%)

0.886

 51–65

27 (28.7%)

24 (31.2%)

3 (17.7%)

 66–80

46 (48.9%)

36 (46.8%)

10 (58.8%)

 > 80

14 (14.9%)

12 (15.6%)

2 (11.8%)

Weight (kg)

61.6 ± 11.0

63.1 ± 11.3

53.8 ± 11.0

0.014

Male/female (n)

53/41

46/31

7/10

0.367

Diabetes mellitus

13 (13.8%)

11 (14.3%)

2 (11.8%)

1.000

Albumin (g/L)

37.1 ± 3.0

37.3 ± 3.1

36.0 ± 3.0

0.121

Creatinine (µmol/L)

86.7 ± 26.9

83.7 ± 27.0

104.2 ± 26.9

0.233

Maintenance dialysis

1 (1.1%)

0 (0%)

1 (5.9%)

0.181

Hypertension

36 (38.3%)

27(35.1%)

9 (52.9%)

0.170

Congestive heart failure

4 (4.3%)

3 (3.9%)

1 (5.9%)

1.000

NSAIDs or alcohol

4 (4.3%)

4 (5.2%)

0 (0%)

1.000

Amiodarone

3 (3.2%)

3 (3.9%)

0 (0%)

1.000

SAMeTT2R2

3 (2–3)

3 (2–3)

3 (3–4)

0.328

HAS-BLED

2 (2–3)

2 (2–3)

2 (1.5–3.5)

0.654

CHA2DS2-VASc

4 (3–5)

4 (3–5)

4 (3–6)

0.599

Get stable INR at the 5-day

77 (81.9%)

71 (92.2%)

6 (35.3%)

0.000

Patients with follow-up INR more than 4 times

89 (94.7%)

72 (93.5%)

7 (41.9%)

0.000

Times of INR follow-up

7 (5–11)

7 (5–11)

5.5 (5–23.75)

0.673

TTR ≥ 65%

58 (65.2%)

54 (70.1%)

4 (23.5%)

0.001

  1. NSAIDs nonsteroidal anti-inflammatory drugs, INR international normalized ratio, TTR time in therapeutic range.