Table 3 Number of events and cumulative incidence during follow-up.

From: Epidemiology, risk profile, management, and outcome in geriatric patients with atrial fibrillation in two long-term care hospitals

Outcome

No AF

AF with OAC

AF without OAC

Pc

N = 801

N = 168

N = 179

No. of events

Cumulative incidence (95% CI)

No. of events

Cumulative incidence (95% CI)

No. of events

Cumulative incidence (95% CI)

De novo AF

55

 

–

–

–

–

 

1 year

30

4.0 (2.8–5.6)

–

–

–

–

 

2 years

47

6.7 (5.0–8.8)

–

–

–

–

 

3 years

50

7.3 (5.5–9.4)

–

–

–

–

 

TIA, stroke, or systemic embolism

27

 

6

 

9

 

0.26

1 year

16

2.2 (1.3–3.4)

1

0.6 (0.1–3.1)

3

1.7 (0.5–4.6)

 

2 years

22

3.1 (2.0–4.6)

5

3.6 (1.3–7.7)

6

3.7 (1.5–7.5)

 

3 years

25

3.7 (2.4–5.3)

5

3.6 (1.3–7.7)

7

4.5 (2.0–8.6)

 

Bleedinga

22

 

8

 

5

 

0.64

1 year

17

2.3 (1.4–3.6)

4

2.6 (0.9–6.2)

3

1.8 (0.5–4.8)

 

2 years

19

2.6 (1.6–4.0)

5

3.4 (1.3–7.4)

3

1.8 (0.5–4.8)

 

3 years

21

3.0 (1.9–4.5)

6

4.3 (1.7–8.6)

4

2.6 (0.8–6.3)

 

All-cause deathb

406

 

82

 

114

 

 < 0.001

1 year

195

26.2 (23.1–29.5)

33

21.3 (15.6–28.6)

71

41.5 (34.5–49.4)

 

2 years

292

41.8 (38.1–45.6)

54

37.5 (30.0–46.1)

92

56.0 (48.4–63.8)

 

3 years

363

55.1 (51.2–59.1)

73

54.6 (46.1–63.6)

103

64.9 (57.1–72.6)

 
  1. AF, atrial fibrillation; CI, confidence interval; N, number of patients; No., number; OAC, oral anticoagulation; TIA, transient ischemic attack.
  2. aIntracranial bleeding, gastrointestinal bleeding, or other clinical relevant extracranial bleeding.
  3. b1-Kaplan–Meier estimate.
  4. cUnivariable competing risk regression model (cause-specific hazard model); AF with OAC versus AF without OAC.
Back to article page