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Table 1 Baseline clinical characteristics of the study groups

From: Clinical outcomes of catheter ablation of paroxysmal atrial fibrillation in very young population compared to older population: a prospective study

Characteristic

Young group

Old group

P value

Age at ablation time (years)

31.6 ± 4.2 (20–35)

49 ± 8.4 (36–66)

< 0.001

Gender

0.85

 Male

23 (76.6 %)

34 (73.9%)

 Female

7 (23.3%)

12 (26.1%)

BMI (kg/m2)

27 ± 3.7

29.2 ± 4.1

0.019

 BMI > 25 kg/m2

10 (33.3%)

18 (39.1%)

 BMI > 30 kg/m2

8 (26.6%)

21 (45.7%)

Arterial hypertension

15 (50%)

28 (60.9%)

0.43

Diabetes mellitus

5 (16.6%)

10 (21.7%)

0.63

Smoking

5 (16.6%)

14 (30.4%)

0.201

Thyroid disease

0

0

 

Structural heart disease

1 (3.3%)

5 (10.8%)

0.154

 IHD

0

4

 DCM

0

0

 HCM

1

1

 VHD

0

0

AF

 Duration (months)

36 (12–120)

36 (6–120)

0.3

 Frequency/month

4 (2–6)

3 (1–6)

0.34

 EHRA score

3 (27 patients)

3 (38 patients)

0.29

LA volume (ml)

39.6 ± 3.1

52.8 ± 4.9

0.001

LVEF%

65.6 ± 3.2

64.2 ± 4.5

0.138

CHA2DS2-VASc score

0.93 ± 0.75

2.11 ± 1.32

< 0.001

Median 1

Median 2

Beta blockers

2 (6.7%)

4 (8.7%)

Class I AAD

16 (53.3%)

20 (43.5%)

Class III AAD

12 (40%)

26 (56.5%)

  1. BMI body mass index, IHD ischemic heart disease, DCM dilated cardiomyopathy, HCM hypertrophic cardiomyopathy, VHD valvular heart disease, AF atrial fibrillation, LA left atrium, LVEF LV ejection fraction, AAD antiarrhythmic drugs