Table 3.
Cox proportional regression analysis using change in right ventricular function
| Model 1 | Model 2 | |||||
|---|---|---|---|---|---|---|
| Adjusted-HR | 95%CI | p value | Adjusted-HR | 95%CI | p value | |
| Change in TAPSE (increase per 1 mm) | 0.95 | 0.91–0.98 | 0.003 | |||
| Baseline TAPSE < 16 mm | 1.73 | 1.19–2.52 | 0.004 | |||
| Change in RVFAC (increase per 10%) | 0.83 | 0.71–0.96 | 0.01 | |||
| Baseline RVFAC < 35% | 2.10 | 1.45–3.02 | < 0.001 | |||
| Age (increase per 1 year) | 0.97 | 0.95–0.99 | 0.007 | 0.99 | 0.97–1.01 | 0.18 |
| Sex male | 1.31 | 0.89–1.91 | 0.17 | 1.07 | 0.74–1.53 | 0.73 |
| Coronary artery disease | 1.57 | 1.06–2.32 | 0.02 | 1.40 | 0.97–2.03 | 0.07 |
| Estimated GFR (increase per 1 mL/min/1.73 m2) | 0.98 | 0.98–0.99 | 0.006 | 0.98 | 0.98–0.99 | 0.003 |
| NYHA functional class IV | 1.85 | 1.28–2.68 | 0.001 | 1.98 | 1.40–2.80 | < 0.001 |
| Secondary MR | 1.13 | 0.79–1.63 | 0.50 | 1.13 | 0.80–1.60 | 0.48 |
| LV ejection fraction < 50% | 0.84 | 0.56–1.24 | 0.38 | 0.79 | 0.55–1.13 | 0.19 |
| TR ≥ 3 + | 1.45 | 0.99–2.11 | 0.06 | 1.36 | 0.95–1.96 | 0.09 |
CI confidence interval, GFR glomerular filtration rate, HR hazard ratio, LV left ventricular, MR mitral regurgitation, NYHA New York Heart Association, RVFAC right ventricular fractional area change, TAPSE tricuspid annular plane systolic excursion, TR tricuspid regurgitation