Table 1 Baseline demographics of patients with and without PVC.

From: Premature ventricular contraction is associated with increased risk of atrial fibrillation: a nationwide population-based study

 

No PVC

All PVC (PVC 1 + PVC 2)

PVC 1

PVC 2

p value

n = 9,533,578

n = 4135

n = 2141

n = 1994

(no PVC vs. all PVC)

Male sex

5,306,708 (55.66%)

1966 (47.55%)

1025 (47.87%)

941 (47.19%)

 < 0.001

Age ≥ 65 years

1,027,296 (10.78%)

872 (21.09%)

403 (18.82%)

469 (23.52%)

 < 0.001

Alcohol consumption

 < 0.001

Non-drinker

4,781,029 (50.15%)

2582 (62.44%)

1315 (61.42%)

1267 (63.54%)

 

Mild- to moderate-drinker

3,973,810 (41.68%)

1303 (31.51%)

704 (32.88%)

599 (30.04%)

 

Heavy-drinker

778,739 (8.17%)

250 (6.05%)

122 (5.70%)

128 (6.42%)

 

Smoking status

 < 0.001

Non-smoker

5,592,120 (58.66%)

2716 (65.68%)

1406 (65.67%)

1310 (65.70%)

 

Ex-smoker

1,359,113 (14.26%)

742 (17.94%)

379 (17.70%)

363 (18.20%)

 

Current-smoker

2,582,345 (27.09%)

677 (16.37%)

356 (16.63%)

321 (16.10%)

 

Regular physical activity

1,721,006 (18.05%)

893 (21.60%)

464 (21.67%)

429 (21.51%)

 < 0.001

Hypertension

2,326,074 (24.40%)

1946 (47.06%)

791 (36.95%)

1155 (57.92%)

 < 0.001

Diabetes mellitus

752,535 (7.89%)

424 (10.25%)

185 (8.64%)

239 (11.99%)

 < 0.001

Dyslipidemia

1,609,858 (16.89%)

1111 (26.87%)

471 (22%)

640 (32.10%)

 < 0.001

Myocardial infarction

29,554 (0.31)

94 (2.27)

40 (1.89)

53 (2.68)

 < 0.001

Mitral stenosis

1907 (0.02)

7 (0.17)

3 (0.14)

5 (0.25)

 < 0.001

Aortic stenosis

2860 (0.03)

15 (0.36)

9 (0.41)

6 (0.3)

 < 0.001

BMI

 < 0.001

BMI < 0 18.5

359,286 (3.77%)

116 (2.81%)

59 (2.76%)

57 (2.86%)

 

18.5 ≤ BMI < 0 23

3,767,938 (39.52%)

1516 (36.66%)

820 (38.30%)

696 (34.90%)

 

23 ≤ BMI < 0 25

2,343,862 (24.59%)

1067 (25.80%)

556 (25.97%)

511 (25.63%)

 

25 ≤ BMI < 0 30

2,732,422 (28.66%)

1294 (31.29%)

638 (29.8%)

656 (32.90%)

 

30 ≤ BMI

330,070 (3.46%)

142 (3.43%)

68 (3.18%)

74 (3.71%)

 

Age

46.07 ± 13.65

52.71 ± 13.31

51.2 ± 13.57

54.34 ± 12.83

 < 0.001

Height

164.24 ± 9.17

162.68 ± 9.05

163.07 ± 9.13

162.25 ± 8.96

 < 0.001

Weight

64.09 ± 11.69

63.46 ± 11.12

63.45 ± 11.21

63.46 ± 11.02

0.001

Systolic blood pressure (mmHg%)

122.11 ± 14.90

123.21 ± 15.36

122.4 ± 15.04

124.08 ± 15.65

 < 0.001

Diastolic blood pressure (mmHg%)

76.21 ± 10.02

76.17 ± 10.19

75.99 ± 10.26

76.37 ± 10.10

0.805

Fasting glucose (mg/dL%)

96.80 ± 23.36

97.67 ± 21.44

96.91 ± 21.37

98.49 ± 21.49

0.017

Total cholesterol (mg/dL%)

195.27 ± 41.10

194.21 ± 36.24

195.3 ± 35.50

193.04 ± 37

0.099

High-density lipoprotein (mg/dL%)

56.58 ± 32.52

56.61 ± 35.98

57.73 ± 40.36

55.39 ± 30.54

0.956

Chronic kidney disease (eGFR < 60 ml/min/1.73m2)

1,035,966 (10.87%)

734 (17.75%)

337 (15.74%)

397 (19.91%)

 < 0.001

  1. Continuous variables are expressed as means ± standard deviations. Regular physical activity is defined as having one or more sessions in a week with high (such as running, climbing, intense bicycle activities) or moderate physical activity (such as walking fast, tennis, or moderate bicycle activities).
  2. BMI body mass index, eGFR estimated glomerular filtration rate, PVC premature ventricular contraction.