Table 1 Baseline characteristics stratified by cognitive decline.

From: Biomarker and cognitive decline in atrial fibrillation: a prospective cohort study

Cognitive decline

Overall

No

Yes

p value

Number of patients

1440

1347

93

 

Female sex

360 (25.0%)

340 (25.2%)

20 (21.5%)

0.496

Age, years

71.9 (8.31)

71.5 (8.24)

77.1 (7.59)

< 0.001

BMI, kg/m2

27.7 (4.59)

27.7 (4.59)

26.9 (4.51)

0.054

Current smoking

96 (6.7%)

89 (6.6%)

7 (7.5%)

0.451

Education level

0.246

 Advanced

596 (41.4%)

551 (40.9%)

45 (48.4%)

 

 Basic

150 (10.4%)

139 (10.3%)

11 (11.8%)

 

 Middle

693 (48.1%)

656 (48.7%)

37 (39.8%)

 

 Missing

1 (0.1%)

1 (0.1%)

0 (0%)

 

Atrial fibrillation type

0.007

 Paroxysmal

674 (46.8%)

628 (46.6%)

46 (49.5%)

 

 Persistent

320 (22.2%)

429 (31.8%)

17 (18.3%)

 

 Permanent

446 (31.0%)

290 (21.5%)

30 (32.3%)

 

CHA2DS2-VASc score

0.003

 0–1

233 (16.2%)

226 (16.8%)

7 (7.5%)

 

 2

285 (19.8%)

273 (20.3%)

12 (12.9%)

 

 3

327 (22.7%)

306 (22.7%)

21 (22.6%)

 

 4

279 (19.4%)

260 (19.3%)

19 (20.4%)

 

 ≥ 5

316 (21.9%)

282 (20.9%)

34 (36.6%)

 

Systolic blood pressure, mmHg

134 (18.2)

134 (18.1)

134 (20.6)

0.786

Diastolic blood pressure, mmHg

78.4 (11.6)

78.6 (11.5)

76.2 (13.0)

0.048

History of heart failure

313 (21.7%)

288 (21.4%)

25 (26.9%)

0.265

Arterial hypertension

958 (66.5%)

894 (66.4%)

64 (68.8%)

0.711

Diabetes

209 (14.5%)

192 (14.3%)

17 (18.3%)

0.361

History of stroke

173 (12.0%)

151 (11.2%)

22 (23.7%)

< 0.001

History of myocardial infarction

212 (14.7%)

191 (14.2%)

21 (22.6%)

0.039

Vascular disease

462 (32.1%)

424 (31.5%)

38 (40.9%)

0.078

History of major bleeding

82 (5.7%)

73 (5.4%)

9 (9.7%)

0.138

Medications

 Oral anticoagulation*

1293 (89.8%)

1206 (89.5%)

87 (93.5%)

0.289

 Non-VKA oral anticoagulants

747 (51.9%)

700 (52.0%)

47 (50.5%)

0.873

 VKA oral anticoagulants

545 (37.8%)

505 (37.5%)

40 (43.0%)

0.342

 Antiplatelets

282 (19.6%)

266 (19.7%)

16 (17.2%)

0.641

  1. *One patient was anticoagulated with heparin.
  2. Continuous variables are shown as means (standard deviation). Categorical variables are shown as counts (percentages). p values were calculated by using Wilcoxon test for continuous variables and chi-squared test for categorical variables.
  3. BMI body mass index, MoCA Montreal Cognitive Assessment, VKA Vitamin K-antagonist.