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. 2017 Apr 28;7:1252. doi: 10.1038/s41598-017-01448-2

Table 2.

Correlation between left ventricular stiffness and indices of left and right ventricular function.

Diastolic wall strain Stiffness index
Univariate correlation Multiple regression Univariate correlation Multiple regression
r p beta p r p beta p
Mitral inflow Doppler indices
 E −0.04 0.66 0.55 <0.001* 0.02 0.57
 A 0.07 0.36 0.13 0.10
 E/A ratio −0.08 0.32 0.34 <0.001* −0.01 0.57
 E deceleration time −0.05 0.56 0.09 0.28
Mitral annular tissue Doppler
 e 0.31 <0.001* −0.03 0.78 −0.60 <0.001* 0.03 0.52
 a 0.16 0.045* 0.05 0.54 −0.30 <0.001* −0.04 0.26
 e/a 0.10 0.22 −0.19 0.02* −0.05 0.15
 E/e ratio −0.30 <0.001* −0.26 0.008* 0.90 <0.001* 0.80 <0.001*
LV longitudinal diastolic deformation
 SRe 0.33 <0.001* 0.16 0.11 0.02 0.83
 SRa 0.20 0.01* 0.01 0.90 −0.13 0.11
2D echocardiographic measurements
 Indexed RV EDA −0.31 <0.001* −0.20 0.02* 0.32 <0.001* 0.43 0.004*
 RV FAC 0.24 0.003* 0.18 0.01* 0.01 0.88
 LVEDd 0.11 0.16 −0.64 <0.001* −0.40 <0.001*

Abbreviation as in Table 1. *Statistically significant.