Purpose: Heart failure is prevalent among older people and has a poor prognosis. The aim of this study is to identify potential prognostic, geriatric, and cardiac parameters which could help clinicians identify older heart failure patients at high risk for one-year mortality.
Methods: The multicentre, observational cohort study which included 147 heart failure patients aged ≥75 years, hospitalized in the cardiac or geriatric department in two hospitals. One-year survival was the outcome measure. For univariate analysis Chi-square test and independent sample T-test were used; for multivariate analysis Logistic regression and Cox regression for time-dependent analysis.
Results: One-year mortality was 28% (41/147). One-year survivors and non-survivors did not differ in the following characteristics: age, gender, sodium level at hospital discharge, ejection fraction, NYHA Class, basic and instrumental activities of daily living, and the presence of a geriatric risk profile. There was a significant lower systolic blood pressure at discharge in non-survivors compared to one-year-survivors (mean 125.26 mmHg vs. 137.59 mmHg). Non-survivors had more severe underlying comorbidities according to the age adjusted Charlson Comorbidity index (CCI) (mean 8.80 vs. 7.40).Both logistic and Cox regression showed a higher risk and rate of mortality with decreasing systolic blood pressure at discharge (OR 0.963, p=0.001 and HR 0.970, p<0.001) and with increasing CCI (OR 1.344, p=0.002 and HR 1.269, p=0.001); the other variables were not significantly related.
Conclusion: Lower blood pressure and more severe comorbidities, but not functionality nor the presence of a geriatric risk profile, are related to one-year mortality in older, in-hospital heart failure patients.
Keywords: Heart failure; older adults; one-year mortality; prognostic factors.