Table 4.
The Association Between Baseline Echocardiographic Parameters and Clinical Composite Score at 12 Months
| Baseline Variable | Units* | CRT OFF | CRT ON | ||
|---|---|---|---|---|---|
| OR (95% CI) | P Value | OR (95% CI) | P Value | ||
| Eessb, mm Hg/mL | 0.4 | 1.09 (0.82 to 1.44) | 0.56 | 1.02 (0.84 to 1.25) | 0.83 |
| Stroke work, mL mm Hg | 2221 | 0.96 (0.72 to 1.28) | 0.77 | 0.85 (0.70 to 1.02) | 0.07 |
| Stroke work/LVEDV, mm Hg | 7.2 | 0.97 (0.74 to 1.27) | 0.80 | 0.94 (0.78 to 1.14) | 0.54 |
| PRSW, g/cm2 | 11.6 | 1.08 (0.79 to 1.48) | 0.64 | 0.88 (0.69 to 1.12) | 0.30 |
| Ea, mm Hg/mL | 0.7 | 1.15 (0.85 to 1.56) | 0.37 | 1.30 (1.04 to 1.63) | 0.02 |
| Ea/Eessb | 1.0 | 1.00 (0.78 to 1.29) | 0.99 | 1.21 (0.95 to 1.54) | 0.12 |
| V0, mL | 82.6 | 0.93 (0.74 to 1.18) | 0.55 | 0.91 (0.73 to 1.14) | 0.42 |
| LVESV, mL | 80 | 0.87 (0.69 to 1.11) | 0.27 | 0.90 (0.73 to 1.10) | 0.31 |
| LVEF, % | 6.6 | 0.96 (0.73 to 1.26) | 0.79 | 0.92 (0.76 to 1.12) | 0.41 |
CRT OFF indicates control group; CRT ON, active cardiac resynchronization therapy group; Ea, effective arterial elastance; Eessb, single beat–derived end-systolic elastance; LVEDV, left ventricular end-diastolic volume; LVEF, left ventricular ejection fraction; LVESV, left ventricular end-systolic volume; OR, odds ratio; PRSW, preload recruitable stroke work; V0, volume intercept.
Units based on 1 SD in echocardiographic parameter. The ORs presented represent the OR per unit change.