Correlation analysis
In order to make the results more intuitive, we used the absolute values
instead of negative value of three-dimensional strain parameters in the
Pearson linear correlation. GLS, GRS, GCS and GAS were negatively
related to NT-proBNP in group C (r =-0.866、r =-0.587、r =-0.428、r
=-0.600、P <0.001、P =0.001、P =0.020、P =0.010).(shown in
Figure 2). And GLS is the only parameter that demonstrated a negative
relationship with NT-proBNP in group B (r =-0.642、P <0.010).
(shown in Figure 3)