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Table 1 Demographic characteristics of the study population

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

Demographic characteristics

Total population [n]

95

Men [n, (%)]

42

(44.2)

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

54.1

±16.4

(21–79)

Primary care referral [n, (%)]

77

(81.1)

Smoking [n, (%)]

7

(7.4)

Earlier palpitations, [n, (%)]

80

(84.2)

Dizziness/presyncope [n, (%)]

15

(15.8)

Congestive Heart Failure [n, (%)]

0

 

Hypertension [n, (%)]

27

(28.4)

Age ≥65 < 75 [n, (%)]

30

(31.6)

Age ≥75 [n, (%)]

9

(9.5)

Diabetes [n, (%)]

1

(1.1)

Earlier stroke/TIA/TE [n, (%)]

6

(6.3)

Cardiovascular disease [n, (%)]

8

(8.4)

CHA2DS2-VASc = 0 [n, (%)]

19

(20)

CHA2DS2-VASc = 1 [n, (%)]

45

(47.4)

CHA2DS2-VASc ≥ 2 [n, (%)]

31

(32.6)

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

110

(27.3–176.3)

Duration palpitation episodes last year [min, median, (IQR)]

10

(3.5–30)

Patients with symptoms during intermittent ECG [n, (%)]

31

(32.6)

Patients with symptoms during 24-hour Holter [n, (%)]

40

(42.1)

Intermittent registrations, total [n, median, (IQR)]

59

(48.5–65)

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

3

(0–9)

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

57

(45.5–65)

24-hour Holter registration time with analysable quality of tracing [h.min, median, (IQR)]

24.00

(23.55–24.00)

  1. IQR = interquartile range; SD = standard deviation; TE = thrombo-embolism; TIA = transient ischemic attack.