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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