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Table 1 Demographic and 2D echocardiographic characteristics of participants by age at echocardiogram

From: Speckle tracking echocardiographically-based analysis of ventricular strain in children: an intervendor comparison

 All groups (n = 108)Group 1 (n = 36)Group 2 (n = 36)Group 3 (n = 36)p
Age (y)9.5 ± 5.49.4 ± 5.49.6 ± 5.19.5 ± 5.90.989
Female n (%)52 (48.2%)16 (44%)18 (50%)18 (50%)0.913
Height (cm)129.3 ± 33.4132.2 ± 33.1128.7 ± 31.1127.1 ± 36.60.805
Weight (kg)33.7 ± 20.936.5 ± 22.833.4 ± 20.831.3 ± 19.10.574
BSA (m2)1.08 ± 0.471.1 ± 0.51.1 ± 0.51.0 ± 0.50.657
BMI (kg/m2)17.8 ± 3.918.5 ± 4.617.7 ± 4.117.2 ± 3.00.339
SBP (mmHg)103.3 ± 12.4106.7 ± 12.9102.8 ± 12.1100.5 ± 11.70.101
DBP (mmHg)56.1 ± 8.858.1 ± 953.4 ± 9.556.9 ± 7.40.064
Heart Rate (bpm)83.3 ± 24.378.4 ± 17.783.2 ± 23.688.2 ± 29.70.238
2D LVEF (%)61 ± 1065 ± 456 ± 1361 ± 7<.001
2D LVEF Z score−0.6 ± 2.10.3 ± 0.9−1.7 ± 2.9−0.5 ± 1.5<.001
2D LVEDV (ml)92.8 ± 59.787.6 ± 47.0109.0 ± 71.481.7 ± 56.00.124
2D LVEDV Z score1.1 ± 2.40.4 ± 0.82.3 ± 3.10.5 ± 2.2<.001
2D LVESV (ml)30.8 (18.3–45.0)30.6 ± 16.653.7 ± 56.533.0 ± 29.40.021
2D LVESV Z score1.1 ± 2.20.2 ± 0.92.5 ± 2.60.7 ± 2.0<.001
2D LV mass (gm)74.5 ± 47.073.5 ± 44.284.9 ± 5465.2 ± 40.80.205
2D LV mass Z score0.6 ± 1.80.0 ± 0.91.6 ± 2.40.2 ± 1.4<.001
  1. Values are presented as mean ± SD or median (IQR). Group 1, patients with normal heart structure and function; Group 2, patients with biventricular circulation and ventricular paced rhythm and wide QRS (≥ 120 msec), Group 3, patients with abnormal contour of the ventricular septum in systole or diastole. p-value is from Kruskal-Wallis test for 2D LVESV, and from ANOVA (analysis of variance) for all other measures
  2. Abbreviations: 2D two-dimensional; BMI body mass index; BSA body surface area; DBP diastolic blood pressure; LVEDV left ventricular end-diastolic volume; LVEF left ventricular ejection fraction; LVESV left ventricular end-systolic volume; SBP systolic blood pressure; SD Standard Deviation; IQR Interquartile range