Table 2 Differences between the new-onset AF and SR groups.

From: Simple risk scoring using sinus rhythm electrocardiograms predicts the incidence of atrial fibrillation in the general population

 

New-onset AF (n = 152)

Sinus rhythm (n = 44,302)

p value

Age, years

59 ± 8

51 ± 10

 < 0.001

Sex, male

111 (73.0)

19,904 (44.9)

 < 0.001

BMI, kg/m2

23.8 ± 3.4

23.2 ± 3.1

0.016

 Obesity, n

43 (28.3)

11,530 (26.0)

0.526

Smoker, n

79 (52.0)

15,308 (35.6)

 < 0.001

Alcoholic intake, n

99 (65.1)

23,568 (53.2)

0.003

HR, bpm

64.6 ± 10.6

65.6 ± 10.4

0.208

PR prolongation, n

6 (4.0)

401 (0.9)

 < 0.001

QRS width, ms

97.4 ± 13.0

95.4 ± 13.4

0.066

 QRS prolongation, n

11 (7.2)

1708 (3.9)

0.031

QT interval, ms

395.7 ± 36.0

388.0 ± 30.9

0.002

QTc interval, ms

407.2 ± 27.5

402.9 ± 23.2

0.021

 QTc prolongation, n

16 (10.5)

2592 (5.9)

0.014

SV1, mV

0.99 ± 0.50

0.94 ± 0.42

0.135

RV5, mV

2.01 ± 0.73

1.67 ± 0.59

 < 0.001

SV1 + RV5, mV

3.00 ± 1.00

2.61 ± 0.79

 < 0.001

 LVH, n

39 (25.7)

5684 (12.8)

 < 0.001

PAC, n

11 (7.2)

421 (1.0)

 < 0.001

PVC, n

5 (3.3)

534 (1.2)

0.019

RAD, n

0 (0.0)

703 (1.6)

0.118

LAD, n

7 (4.6)

565 (1.3)

 < 0.001

  1. Continuous variables are expressed as means ± standard deviations. Categorical variables are expressed as numbers of subjects and proportions (percentages). Obesity was defined as a BMI of ≥ 25 kg/m2. PR prolongation was defined as a PR interval of > 200 ms. QRS prolongation was defined as a QRS width of ≥ 120 ms. QTc prolongation was defined as a QTc interval of ≥ 440 ms. LVH was defined as a SV1 + RV5 of ≥ 3.5 mV.
  2. AF atrial fibrillation, BMI body mass index, HR heart rate, LVH left ventricular hypertrophy, PAC premature atrial complex, PVC premature ventricular complex, RAD right axis deviation, SR sinus rhythm, LAD left axis deviation, QTc mean QT corrected for HR.
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