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Table 1 Baseline characteristics of patients with idiopathic left bundle-branch block (LBBB) and both age-, gender, and body mass index (BMI)-matched control groups with (A) and without (B) cardiovascular disease risk factors

From: Presence of contractile impairment appears crucial for structural remodeling in idiopathic left bundle-branch block

Baseline characteristics

Idiopathic LBBB (n = 53)

Control group A CVRF ( +)

(n = 53)

Control group B CVRF (−)

(n = 26)

p

p

(LBBB vs. control group A)

(LBBB vs. control group B)

Age (years)

60 ± 11

59 ± 10

59 ± 13

0.774

0.828

Female (n)

37 (70%)

37 (70%)

18 (69%)

1.000

0.958

Body surface area (m2)

1.86 (1.66–2.16)

1.87 (1.70–2.07)

1.87 (1.73–2.00)

0.950

0.867

Body mass index (kg/m2)

26 (23–31)

26 (23–30)

26 (24–27)

0.609

0.639

Heart rate (bpm)

71 ± 12

71 ± 14

68 ± 10

0.994

0.225

Hypertension

25 (48%)

13 (30%)

0 (0%)

0.064

 < 0.001

Hypercholesterolemia

17 (34%)

7 (18%)

0 (0%)

0.090

 < 0.05

Diabetes mellitus

6 (12%)

3 (7%)

0 (0%)

0.358

0.083

Smoking history

13 (26%)

10 (25%)

0 (0%)

0.914

 < 0.01

Family history of coronary artery disease

12 (24%)

9 (21%)

0 (0%)

0.770

 < 0.05

NT-proBNP (< 125 ng/l)

109 (83–218)

    

High-sensitive Troponin T (< 14 pg/ml)

8 (5.8–12.3)

    
  1. LBBB left bundle-branch block; bpm beats per minute; NT-proBNP N-terminal pro B-type natriuretic peptide. Values are mean ± SD, median (IQR) or n (%)