Variable Male (n=59) Female (n=43) p-value
Age (days) 1.51 ± 0.751 1.45 ± 0.861 0.729
Male, n%
Female, n%
Weight (kg) 3.246 ± 0.479 3.078 ± 0.582 0.113
Height (cm) 50.1 ± 1.98 49.81 ± 1.98 0.470
BSA (m2) 0.211 ± 0.097 0.187 ± 0.042 0.136
Echo variables Echo variables Echo variables Echo variables
End diastolic diameter (mm) 1.62 ± 0.242 1.61 ± 0.208 0.745
End systolic diameter (mm) 1.07 ± 0.171 1.04 ± 0.155 0.336
Fractional shortening (%) 33.78 ± 3.348 33.58 ± 3.554 0.774
Biplane Simpson EF (%) 60.92 ± 3.454 61.20 ± 3.725 0.681
LV 4ch strain -19.90 ± 1.57 -20.21 ± 1.209 0.284
LV 3ch strain -19.20 ± 4.603 -19.65 ± 1.355 0.544
LV 2ch strain -19.58 ± 5.30 -19.62 ± 1.278 0.962
LV GLS -19.93 ± 1.37 - 19.81 ± 0.81 0.614
Ejection fraction strain (%) 59.79 ± 2.530 60.26 ± 2.879 0.393
Strain rate -0.051 ± 0.004 -0.051 ± 0.002 0.920