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Table 4 Comparison of echocardiographic parameters between case and control groups

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 P value
+
ANTSEPT (%) Base 17.20 ± 2.69 14.85 ± 3.90 0.032
Mid 20.25 ± 3.54 18.15 ± 3.96 0.085
POST (%) Base 19.45 ± 2.28 18.90 ± 2.61 0.483
Mid 20.80 ± 2.31 20.20 ± 2.59 0.444
ANT (%) Base 17.10 ± 2.65 17.40 ± 3.07 0.743
Mid 20.35 ± 2.96 20.25 ± 3.82 0.927
Apex 25.60 ± 3.55 23.90 ± 4.27 0.179
INF (%) Base 19.00 ± 1.78 17.25 ± 2.02 0.006
Mid 21.15 ± 2.08 20.00 ± 2.60 0.131
Apex 25.85 ± 2.70 24.35 ± 4.13 0.182
LAT (%) Base 18.95 ± 2.67 17.35 ± 3.54 0.115
Mid 20.20 ± 2.61 19.55 ± 3.89 0.538
Apex 24.60 ± 3.91 23.55 ± 4.26 0.422
SEPT (%) Base 17.15 ± 1.93 15.35 ± 2.06 0.007
Mid 20.80 ± 1.77 18.65 ± 2.37 0.002
Apex 25.90 ± 3.13 23.25 ± 3.46 0.015
A3C_GLS (%) 21.07 ± 2.28 19.44 ± 2.92 0.057
A2C_GLS (%) 21.67 ± 1.95 20.74 ± 1.96 0.143
A4C_GLS (%) 21.44 ± 1.81 19.86 ± 2.58 0.031
GLS (%) 19.94 ± 1.78 21.41 ± 1.59 0.009
  1. ANTSEPT: anteroseptal; POST: posterior; ANT: anterior; INF: inferior; LAT: lateral; SEPT: septal; A3C_GLS: GLS in apical three-chamber view; A2C_GLS: GLS in apical two-chamber view; A4C_GLS: GLS in apical four-chamber view. Bold values imply statistical significance