Table 4.
Multivariate Cox proportional hazard regression.
| Models | HR | 95% CI | P value |
|---|---|---|---|
| Model 1: clinical features | |||
| NYHA class | 3.79 | 2.05–7.00 | <0.001 |
| Model 2: clinical features + laboratory test results | |||
| NYHA class | 3.81 | 1.74–8.37 | 0.001 |
| Log NT-proBNP | 1.87 | 1.06–4.77 | 0.036 |
| Model 3: clinical features + laboratory test results + echocardiographic parameters | |||
| NYHA class | 3.42 | 1.36–8.65 | 0.002 |
| Log NT-proBNP | 1.40 | 1.17–5.83 | 0.03 |
| ENDO LSsys of LV basal level | 1.25 | 1.05–1.95 | 0.004 |
NYHA: New York Heart Association; NT-proBNP: N-terminal precursor of brain natriuretic peptide; ENDO LSsys of LV: endocardial longitudinal strain during left ventricle systole.