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Table 2 Association of HF severity with ventricular stiffness and ventriculoarterial interaction index by univariate linear regression

From: Echo-Doppler–derived indexes of ventricular stiffness and ventriculo-arterial interaction as predictors of new-onset atrial fibrillation in patients with heart failure

Ejection fraction BNP(Log-transformed)
  ß p-value ß p-value
Ed (1/ml) −0.496 * < 0.001 0.609 * <0.001
Ees (m/s) 0.001 0.991 0.218 * 0.020
Ea (mmHg/ml) −0.314 * < 0.001 0.212 * 0.031
VVI −0.190 0.064 0.040 0.735
  1. Ed left ventricular (LV) diastolic elastance; Ees LV end-systolic elastance; Ea effective arterial elastance; VVI ventricular-vascular coupling index