Variable

GLS(
P
value)

GCS(
P
value)

GAS(
P
value)

GRS(
P
value)


Gestation period(w)

−0.286(<0.01)

−0.268(<0.01)

−0.299(<0.01)

−0.296(<0.01)

LVmi(g/m2)

0.176(>0.05)

0.133(>0.05)

0.220(<0.05)

0.170(>0.05)

Sphericity index

0.264(<0.01)

0.191(>0.05)

0.328(<0.01)

0.316(<0.01)

LA index(ml/m2)

0.253(<0.01)

0.171(>0.05)

0.258(<0.01)

0.269(<0.01)

3D EF(%)

0.436(<0.01)

0.472(<0.01)

0.549(<0.01)

0.541(<0.01)

 Abbreviations as in Tables 2, 3, and 4. Values of GLS, GCS, GRS and GAS considered as ‘positive’ (sign +) to build the univariate relations in order to homogenize the results of analyses and strengthen their clinical meaning: the higher the values, the better is the strain deformation independent of the plus/minus sign.