Research Journal of Medical Sciences
ISSN: Online 1993-6095ISSN: Print 1815-9346
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Bioelectric Impedance Analyzer Derived Phase Angle in Indians in the Screening of Malnutrition: The Search for the Right Number
Sanjith Saseedharan, Chandrima Pramanik, Dhanashree Lapalikar and Elizabeth Mathew
Page: 518-524 | Received 10 Sep 2024, Published online: 11 Nov 2024
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Abstract
20‐60% of patients in Intensive Care Unit are at high nutritional risk in developed countries. Phase angle derived from Bio electrical impedance analyzer(BIA), is an indicator of cellular integrity and nutritional status. There are no Indian studies in intensive care unit that have studied phase angle and its relation to malnutrition screening and diagnosis. This observational study was performed at the Intensive Care Unit of a tertiary care hospital with 85 patients. The NRS‐2002(Nutrition Risk Screening‐2002), modified NUTRIC( Nutrition Risk in Critically ill), SGA (Subjective Global Assessment) scores were used in the screening for malnutrition in85 consecutive patients. A multi‐frequency segmental BIA,(In Body S10® ) device was used in the assessment of phase angle and body composition. To determine agreement between NUTRIC, NRS 2002 and SGA with phase angle, Cohen’s statistic was calculated. SGA was significantly positively correlated with NRS and NUTRIC score whereas significantly negatively correlated with phase angle and serum albumin (p<0.05). ROC was conducted for phase angle, SMI and FFM in correlation to SGA for males and females. Only Phase angle was significantly correlating with malnutrition. In males a cut off of 4.4 and in females a cut‐off of 3.25 signified malnutrition. There was a moderate agreement between NUTRIC and SGA and a fair agreement between NRS and SGA. The study results found that a phase angle derived 4.4 in males and 3.25 in females were cut offs that closely correlated to malnutrition in our group of patients. This is quite different to international literature where the cut‐offs were 5 and 4.6 for males and females respectively. When current study cut‐off for phase angle were used, a moderate agreement was observed between Phase angle and SGA (Cohen’s k= 0.573, p<0.001) which seems to indicates that for the Indian population, a lower cut‐off for phase angle would be more appropriate.
How to cite this article:
Sanjith Saseedharan, Chandrima Pramanik, Dhanashree Lapalikar and Elizabeth Mathew. Bioelectric Impedance Analyzer Derived Phase Angle in Indians in the Screening of Malnutrition: The Search for the Right Number.
DOI: https://doi.org/10.36478/10.36478/makrjms.2024.11.518.524
URL: https://www.makhillpublications.co/view-article/1815-9346/10.36478/makrjms.2024.11.518.524