Table 5. Categorical variables compared for mortality at one-year and three-year follow-up (Chi-squared test).
NYHA: New York Heart Association; COPD: chronic obstructive pulmonary disease; ACEI/ARB: angiotensin-converting enzyme inhibitors/angiotensin receptors blockers.
| One-year mortality | Three-year mortality | |||
| Independence Chi-square test (X2) | P-value | Independence Chi-square test (X2) | P-value | |
| Gender | 0.345 | 0.557 | 0.000 | 0.997 |
| Previous functional status | 9.978 | 0.007 | 13.431 | 0.001 |
| NYHA class at discharge | 12.143 | 0.007 | 6.185 | 0.103 |
| Current smoker | 0.729 | 0.393 | 0.011 | 0.918 |
| Diabetes mellitus | 0.005 | 0.943 | 0.026 | 0.872 |
| COPD | 0.158 | 0.691 | 0.744 | 0.389 |
| Dementia | 0.200 | 0.655 | 1.482 | 0.223 |
| Beta-blockers at discharge | 0.010 | 0.921 | 1.536 | 0.215 |
| ACEI/ARB medication at discharge | 9.751 | 0.002 | 8.270 | 0.004 |
| Use of psychopharmacs | 5.781 | 0.016 | 10.209 | 0.001 |