Journal
THERAPEUTIC APHERESIS AND DIALYSIS
Volume 27, Issue 2, Pages 253-263Publisher
WILEY
DOI: 10.1111/1744-9987.13908
Keywords
albumin; body mass index; GNRI; hemodialysis; malnutrition; protein-energy wasting
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The study found that the simplified GNRI (sGNRI) is as useful as the original GNRI for screening for malnutrition and stratifying hemodialysis patients at increased mortality risk.
Introduction The geriatric nutritional risk index (GNRI) is a widely used tool for nutritional assessment in patients receiving hemodialysis. The simplification of the GNRI calculation would be more useful for easier screening of malnutrition and for providing an intuitive stratification of mortality risk. Methods We retrospectively evaluated 218 Japanese patients receiving maintenance hemodialysis at two hemodialysis centers. The primary outcome was all-cause mortality. The main exposure was a simplified GNRI (sGNRI) calculated as follows: sGNRI = serum albumin (g/dL) + 0.1 x body mass index (kg/m(2)). Results During the median 4.4-year follow-up, 56 patients died. Multivariable-adjusted Cox proportional hazard risk models showed that patients with a lower sGNRI showed a significantly increased mortality risk. No significant difference was observed between the original GNRI and sGNRI regarding mortality predictability. Conclusion sGNRI is as useful as the original GNRI for screening for malnutrition and stratifying hemodialysis patients at increased mortality risk.
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