Table 1 Cox proportional hazard analysis of various clinical and noninvasive imaging predictors of long-term mortality in patients with biopsy proven cardiac amyloidosis
| Univariate Analysis | Multivariate Analysis | ||
|---|---|---|---|
| Variable | χ2 | p value | p value |
| Age | 3.8 | 0.05 | 0.10 |
| Gender | 0.15 | 0.69 | |
| New York Heart Association Class | 3.3 | 0.07 | 0.16 |
| Low voltage on electrocardiogram | 0.67 | 0.41 | |
| Left atrial size > 20 cm2 | 0.76 | 0.39 | |
| Left ventricular ejection fraction | 2.21 | 0.14 | |
| Interventricular septal thickness | 1.7 | 0.19 | |
| E/E' > 15 on Doppler echocardiography | 1.12 | 0.29 | |
| Deceleration time on Doppler echocardiography ≤ 150 msec | 1.41 | 0.23 | |
| Myocardial performance index | 2.10 | 0.15 | |
| Diastology grade | 0.35 | 0.55 | |
| Delayed hyperenhancement on cardiac magnetic resonance | 4.91 | 0.03 | 0.02 |
