Page 75 - Advanced echocardiography in characterization and management of patients with secondary mitral regurgitation
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in Figure 3B. The HR for all-cause mortality gradually decreased as the RVol/EDV ratios increased. The assumption of linearity was not violated (χ2 = 0.695; p = 0.884). In this model, a high RVol/EDV ratio was independently associated with reduced all-cause mortality (HR per 5% increment: 0.93; 95% CI: 0.87 to 0.99; p = 0.023) (Table 4).
Figure 2. Kaplan-Meier Curves for All-Cause Mortality
(A) Patients were censored at the time of mitral valve interventions. (B) All follow-up data, including after mitral valve interventions. Time to all-cause mortality according to RVol/EDV ratio: ≥20% (green) and <20% (red). CI = confidence interval; EDV = end-diastolic volume; HR = hazard ratio; RVol = regurgitant volume.
Figure 3. Spline Curve for All-Cause Mortality According to RVol/EDV Ratio
All-cause mortality across the range of RVol/EDV ratios, plotted as a cubic spline on a log-hazard scale with overlaid confidence intervals. (A) Patients were censored at the time of mitral valve
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