Table 5.
Multivariate Model | Multivariate Model Chi-Square Value | Multivariate p-value of added predictor(s) beyond the basic model | C-index |
---|---|---|---|
Basic | 100.4 | 0.70 | |
Basic + Left ventricular diastolic dimension | 107.1 | 0.009 | 0.71 |
Basic + Left ventricular mass | 105.3 | 0.03 | 0.70 |
Basic + Left ventricular ejection fraction | 103.8 | 0.06 | 0.70 |
Basic + Left atrial dimension | 101.3 | 0.33 | 0.70 |
Basic + Peak mitral early diastolic-to-peak late diastolic velocity ratio | 127.4 | <0.0001 | 0.73 |
Basic + Early diastolic deceleration time | 105.6 | 0.02 | 0.71 |
Basic + Peak mitral early diastolic velocity-to-tissue Doppler peak early diastolic myocardial velocity ratio | 121.2 | <0.0001 | 0.72 |
Basic + Mitral regurgitation grade | 111.6 | 0.0008 | 0.71 |
Basic + All 8 echo variables | 149.5 | multiple added predictors | 0.74 |
Basic + Peak oxygen consumption | 132.6 | <0.0001 | 0.74 |
Basic + Peak oxygen consumption + Peak mitral early diastolic-to-peak late diastolic velocity ratio | 146.4 | 0.0002 (E/A) <0.0001 (peak VO2) | 0.75 |
Basic multivariate model for secondary endpoint includes age (truncated at 62 years), body surface area, BUN (truncated at 39mg/dL), gender, KCCQ symptom stability score, loop diuretic dose (truncated at 100mg), race, ventricular conduction.