To systematically investigate the prevalence of cognitive impairment (CI) and its associated factors among older inpatients with chronic heart failure (CHF).
Key Findings:
The prevalence of cognitive impairment among older CHF inpatients was 55.9%.
Independent risk factors for CI included age ≥ 80 years (OR = 6.122), sleep disturbance (OR = 2.870), diabetes (OR = 2.409), and elevated NT-proBNP (>1000 pg/mL).
Protective factors included education level of senior high school or above (OR = 0.186) and LVEF ≥ 50% (OR = 0.035).
LVEF was confirmed as the most influential variable affecting cognitive impairment.
Interpretation:
Cognitive impairment is prevalent in older CHF patients and is influenced by several clinical and demographic factors.
Limitations:
The study was conducted at a single center, which may limit generalizability.
