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Table 2 Baseline characteristics of the participants based on fQRS and GLS status

From: Fragmented QRS as an early predictor of left ventricular systolic dysfunction in healthy individuals: a nested case-control study in the era of speckle tracking echocardiography

 

fQRS

GLS

-

(n = 20)

+

(n = 20)

P value

Normal (n = 26)

reduced (n = 14)

p value

Age (yrs.)

49.55 ± 6.51

51.15 ± 6.64

0.446

49.65 ± 7.25

51.64 ± 4.93

0.366

Gender (male, %)

16 (80)

14 (70)

0.465

18 (69.2)

12 (85.7)

0.251

LVEDV (ml)

83.15 ± 24.85

79.35 ± 20.25

0.599

82.80 ± 23.79

78.35 ± 20.25

0.557

LVESV (ml)

35.20 ± 9.87

32.85 ± 8.41

0.423

34.38 ± 9.88

33.35 ± 7.82

0.739

D-LV diameter(cm)

4.69 ± 0.48

4.65 ± 0.59

0.792

4.65 ± 0.58

4.70 ± 0.43

0.780

S-LV diameter (cm)

3.08 ± 0.41

3.01 ± 0.45

0.612

3.06 ± 0.46

3.01 ± 0.37

0.744

EF (%)

59.20 ± 2.53

59.40 ± 3.2

0.830

59.23 ± 2.80

59.42 ± 3.15

0.840

  1. Data were presented as mean ± sd or n (%) or (%). Normal GLS: > 20%. Reduced GLS: ≤20%. LVEDV left ventricular end-diastolic volume, LVESV left ventricular end-systolic volume, D-LV diameter left ventricular diameter in diastole, S-LV diameter left ventricular diameter in systole, EF ejection fraction