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Table 3 Baseline characteristics and renal outcomes (after warfarin, dabigatran, and anti-factor Xa inhibitors 1:1:2 propensity score matching)

From: The impact on renal function after long-term use of anticoagulants in atrial fibrillation patients

Variable

Warfarin

Dabigatran

Anti-factor Xa inhibitors

p value

ASMD

W vs D

W vs XaI

D vs XaI

N

531

531

1062

 

Gender (male)

344 (64.8)

358 (67.4)

660 (62.1)

0.110

0.003

0.003

0.007

Mean age

71 ± 8.8a, b

70 ± 8.7a

71 ± 8.6b

0.004

0.108

0.068

0.177

Medical history

 Type 2 DM

111 (20.9)

104 (19.6)

238 (22.4)

0.415

0.003

0.003

0.006

 Hypertension

258 (48.6)a

214 (40.3)b

524 (49.3)a

0.002

0.012

0.001

0.014

 Hyperlipidemia

127 (23.9)

118 (22.2)

267 (25.1)

0.436

0.004

0.002

0.006

 Heart failure

34 (6.4)

34 (6.4)

87 (8.2)

0.285

0

0.007

0.002

 Previous stroke

30 (5.6)

31 (5.8)

58 (5.5)

0.952

0.001

0.001

0.002

 Vascular disease

14 (2.6)

6 (1.1)

24 (2.3)

0.188

0.011

0.002

0.009

Chronic kidney disease

 Stage < 3

355 (66.9)a

407 (76.6)b

678 (63.8)a

<  0.001

0.012

0.004

0.015

 Stage ≥3

176 (33.1)a

124 (23.4)b

384 (36.2)a

0.018

0.005

0.024

 CHA2DS2-VASc

2.55 ± 1.30a

2.40 ± 1.33a

3.26 ± 1.33b

< 0.001

0.114

0.106

0.218

Medication

 ACEI/ARB

329 (62.0)

310 (58.4)

669 (63.0)

0.199

0.005

0.001

0.006

 Spironolactone

0 (0)

0 (0)

2 (0.4)

0.500

0.006

0.006

Renal function

 The average serum Cr (mg/dL)

1.06 ± 0.30a

1.00 ± 0.26b

1.07 ± 0.30a

< 0.001

0.214

0.033

0.249

 Baseline eGFR (mL/min/1.73 m2)

71.47 ± 22.42a

76.00 ± 21.91b

69.65 ± 21.24a

<  0.001

0.204

0.083

0.294

 1-year eGFR (mL/min/1.73 m2)

68.90 ± 21.78a

73.85 ± 22.02b

67.82 ± 21.21a

<  0.001

0.226

0.050

0.279

 2-year eGFR (mL/min/1.73 m2)

68.87 ± 24.74a

73.68 ± 25.72b

66.91 ± 21.82a

< 0.001

0.191

0.084

0.284

Renal outcomes

 Acute kidney injury (%)

54 (10.2)a

23 (4.3)b

57 (5.4)b

< 0.001

0.022

0.017

0.005

 Renal failure requiring HD (%)

0 (0)

0 (0)

1 (0.1)

1.000

0.004

0.004

 Renal death (%)

3 (0.6)

0 (0)

4 (0.4)

0.288

0.011

0.003

0.009

  1. Data were presented as mean ± standard deviation or numbers (percentages)
  2. Different letters (a, b) associated with different groups indicate significant difference (at 0.05 level) by Bonferroni multiple comparison procedure
  3. Abbreviation: ASMD absolute standardized mean difference, W warfarin, D dabigatran, XaI anti-factor Xa inhibitor, N number, DM diabetes mellitus, Cr creatinine, eGFR estimated glomerular filtration rate, ACEI Angiotensin-converting enzyme inhibitor, ARB angiotensin receptor blocker, HD hemodialysis