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Table 2 Demographic and intermittent ECG characteristics of patients with and without AF

From: Intermittent short ECG recording is more effective than 24-hour Holter ECG in detection of arrhythmias

Demographic characteristics

 

AF

Non AF

P-Value

Patients [n, (%)]

 

9

(9.5)

 

86

(90.5)

  

Men [n, (%)]

 

3

(33.3)

 

39

(45.3)

 

0.490

Age [years, mean, SD, (range)]

 

58.3

±11.5

(28–67)

53.8

±16.8

(21–79)

0.476

Referred for palpitations [n, (%)]

 

9

(100)

 

71

(82.6)

 

0.172

CHA2DS2-VASc = 0 [n, (%)]

 

0

  

19

(22.1)

 

0.115

CHA2DS2-VASc = 1 [n, (%)]

 

5

(55.6)

 

40

(46.5)

 

0.605

CHA2DS2-VASc ≥ 2 [n, (%)]

 

4

(44.4)

 

27

(31.4)

 

0.427

Palpitation episodes last year [n, median (IQR)]

 

110

(105–115)

 

110

(25.8–178.8)

 

0.969

Duration of palpitation episodes [min, median (IQR)]

 

10

4.3–26.3

 

10

3.5–30

 

0.979

Intermittent ECG characteristics

 

AF

Non AF

P-Value

Time to detection [n, (%)]

Day 1

1

(11.1)

     
 

Day 2–14

5

(55.6)

     
 

Day 15–28

3

(33.3)

     

Heart rate AF [bpm, mean, SD, (range)]

 

145

±19.0

(120–184)

    

Registrations, total [n, median (IQR)]

 

61

(58–70)

 

57.5

(46.8–64.8)

 

0.234

Registrations with symptoms [n, median (IQR)]

 

9

(2–9)

 

2.5

(0–8.8)

 

0.216

Registrations with analysable tracing quality [n, median (IQR)]

 

61

(54–70)

 

57

(45–64.8)

 

0.247

Intermittent registrations with AF [n, median (IQR)]

 

4

(1–5)

     

Symptomatic AF registrations [n, median (IQR)]

 

2

(0–3)

     
  1. AF = atrial fibrillation; IQR = interquartile range; SD = standard deviation.