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Table 1 Characteristics of Patients with AF classified based on Warfarin Use

From: Examining warfarin underutilization rates in patients with atrial fibrillation: Detailed chart review essential to capture contraindications to warfarin therapy

Characteristics

Received Warfarin n = 199

Did Not Receive Warfarin n = 165

p value

Age, years, mean

76.3 ± 11.3

81.3 ± 10.3

< 0.001*

Age 75 ≥ y, n (%)

125 (62.8)

134 (81.2)

< 0.001*

AA Race, n (%)

74 (37.2)

82 (49.7)

0.016*

Women, n (%)

76 (38.2)

79 (47.9)

0.063

CAD, n (%)

92 (46.2)

87 (52.7)

0.217

Mean CHADS 2 Score ± S.D

2.8 ± 1.3

3.2 ± 1.3

0.004*

CHADS 2 Score- 3 or greater (%)

111 (56)

116 (70)

0.004*

Chads 2 Score

   

No. of points, n (%)

   

0

3 (1.5)

2 (1)

 

1

22 (11)

12 (7)

 

2

63 (32)

35 (21)

 

3

59 (30)

58 (35)

 

4

32 (16)

28 (17)

 

5

15 (7.5)

22 (14)

 

6

5 (2.5)

8 (5)

 

Heart Failure, n (%)

120 (60.3)

103 (62.4)

0.679

Diabetes, n (%)

68 (34.2)

66 (40.0)

0.251

Hypertension, n (%)

179 (90.0)

149 (90.3)

0.911

Prior Stroke, n (%)

47 (23.6)

43 (26.1)

0.591

  1. Abbreviations: AA- African American, CAD- Coronary Artery Disease, CHADS2- C-cardiac failure, H-hypertension, A-age > 75 years, D- diabetes mellitus, S- stroke, S.D- Standard deviation
  2. *Statistically significant, p < 0.05