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Table 4 Cox proportional hazard analysis by LVOT VTI tertile

From: Left ventricular outflow tract velocity time integral outperforms ejection fraction and Doppler-derived cardiac output for predicting outcomes in a select advanced heart failure cohort

  Lowest tertile (LVOT VTI < 8.1, n = 34) vs Upper 2/3 s study population (n = 66) P-value
Unadjusted analysis 4.755 (CI 1.576 - 14.348) 0.006
Adjusted analysis* 12.680 (CI 2.638 – 60.949) 0.002
  1. *Adjusted for Age, Creatinine, Ejection fraction, Pulmonary artery systolic pressure and NYHA class