| Abstract |
The present study aimed to evaluate the usefulness of the Geriatric Nutritional Risk Index (GNRI), a
malnutrition screening tool, for screening sarcopenia in older inpatients with community-acquired pneumonia (CAP).
Methods: A secondary cross-sectional analysis was performed using data from 95 patients aged ≥65 years who were
hospitalized for CAP b etween April 2017 and March 2019. The GNRI was u sed to a ssess nutritional status, and sarcopenia
was diagnosed on the basis of the 2019 Asian Working Group for Sarcopenia criteria. Receiver operating characteristic
curve analysis w as u sed to d etermine t he diagnostic p erformance o f GNRI. Results: Among participants, 27%, 28%, and
17% had mild, moderate, and severe malnutrition risk, respectively. The prevalence rate of sarcopenia was 59%. The GNRI
showed good discriminatory ability for sarcopenia (area under the curve = 0.845; 95% confidence interval: 0.763–0.926).
The optimal GNRI cutoff was 91.9, with a sensitivity and specificity of 85.5% and 75.6%, respectively. Conclusion: The
GNRI may be a simple and effective tool for screening sarcopenia in older patients with CAP. Early identification may
support timely intervention and improve outcomes in geriatric care. |