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Updated: May 21, 2025
Author Spotlight: Unveiling Prognostic Indicators in Heart Failure - The Role of Phase Angle and Bioelectrical Impedance Analysis
Published on: June 30, 2023
Association between phase angle and hospital-associated disability in hospitalized patients in the internal medicine
Kei Shirakawa1, Moriho Mugita1, Masafumi Hirota1
1Department of Rehabilitation, Nippon Life Hospital, 2-1-54 Enokojima, Nishi-Ku, Osaka, 550-0006, Japan.
Objective:
This study aimed to evaluate the association between the phase angle (PhA) and hospital-associated disability (HAD) in older patients admitted to an internal medicine ward.
Methods:
This was a prospective observational study in a single acute care hospital. HAD was defined as a decrease of at least five points in the Barthel index at discharge compared to pre-admission. Multiple logistic regression analysis was used to determine the association between PhA and HAD. The cut-off point for PhA was evaluated using a receiver operating characteristic curve.
Results:
This study included 215 patients (113 males; mean age: 80.8 years). The HAD incidence rate was 27.9 %. Multiple logistic regression analysis showed that PhA was associated with HAD (odds ratio: 3.47, 95 % confidence interval: 1.95-6.18, p < 0.001). The PhA cut-off points for predicting HAD were 3.7° for men and 3.6° for women.
Conclusion:
PhA was associated with HAD in older patients admitted to the internal medicine ward and may be a useful indicator for predicting HAD.
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