Cited by 392Nutrition and Health in AgingBody Composition Measurement TechniquesClinical Nutrition and Gastroenterology

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Nutritional assessment: lean body mass depletion at hospital admission is associated with an increased length of stay

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Pichard, Claude, Kyle, Ursula G, Morabia, Alfredo, Perrier, Arnaud, Vermeulen, Bernard, Unger, Pierre·2004·The American Journal of Clinical Nutrition

DOI 10.1093/ajcn/79.4.613

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Abstract

Background Low fat-free mass may be an independent risk factor for malnutrition that results in an increased length of hospital stay (LOS). Objectives The objectives were to compare differences in fat-free mass and fat mass at hospital admission between patients and healthy control subjects and to determine the association between these differences and the LOS. Design Patients (525 men, 470 women) were prospectively recruited at hospital admission. Height-corrected fat-free mass and fat mass (fat-free-mass index or fat-mass index; in kg/m2) were determined in patients at admission by bioelectrical impedance analysis and were compared with values for sex-, age-, and height-matched control subjects. Patients were classified as well-nourished, moderately depleted, or severely depleted on the basis of a Subjective Global Assessment questionnaire and a body mass index (in kg/m2) < or > 20. Results Low fat-free mass was noted in 37% and 55.6% of patients hospitalized 1-2 d and > 12 d, respectively. The odds ratios were significant for fat-free-mass index and were higher in patients with a LOS of > 12 d [men (odds ratio: 5.6; 95% CI: 3.1, 10.4), women (4.4; 2.3, 8.7)] than in those with a LOS of 1-2 d [men (3.3; 2.2, 5.0), women (2.2; 1.6, 3.1)]. Severe nutritional depletion was significantly associated only with a LOS > 12 d. Conclusion Fat-free mass and fat-free-mass index were significantly lower in patients than in control subjects. Because the fat-free-mass index is significantly associated with an increased LOS, provides nutritional assessment information that complements that from a Subjective Global Assessment questionnaire, and is a more sensitive determinant of the association of fat-free mass with LOS than is a weight loss > 10% or a body mass index < 20, it should be used to evaluate nutritional status.

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Authors: Pichard, C., Kyle, U. G., Morabia, A., Perrier, A., Vermeulen, B., & Unger, P.
Affiliations: University Hospital of Geneva (CH)
ORCID: Pichard, Claude
Morabia, Alfredo
Perrier, Arnaud
Venue: The American Journal of Clinical Nutrition
Publisher: Elsevier BV
Published: 2004-04
Volume: 79
Issue: 4
Pages: 613-618
ISSN: 0002-9165 (ISSN-L)
DOI: 10.1093/ajcn/79.4.613
OpenAlex: W2145092440
Cited by: 392
References: 33
Citations by year: 2026: 3 · 2025: 6 · 2024: 4 · 2023: 12 · 2022: 15 · 2021: 20 · 2020: 25 · 2019: 19 · 2018: 24 · 2017: 12 · 2016: 26 · 2015: 25 · 2014: 27 · 2013: 18 · 2012: 41
FWCI: 8.45
Type: journal article
Language: en
Open access: bronze
doi.org
Licence: www.elsevier.com/tdm/userlicense/1.0/ (tdm)
www.elsevier.com/open-access/userlicense/1.0/ (vor, 6895 d)
Locations: American Journal of Clinical Nutrition (publishedVersion)
PubMed (publishedVersion)
Topics: Health Sciences › Medicine › Physiology (medical) › Nutrition and Health in Aging
Health Sciences › Medicine › Physiology (medical) › Body Composition Measurement Techniques
Health Sciences › Nursing › Nutrition and Dietetics › Clinical Nutrition and Gastroenterology
Keywords: lean body mass, fat-free mass, fat-free mass index, fat mass, malnutrition, length of hospital stay, nutritional assessment, hospitalization, bioelectrical impedance analysis, Subjective Global Assessment, body mass index, hospitalized patients
MeSH terms: Adipose Tissue, Aged, Female, Hospitalization, Humans, Length of Stay, Male, Middle Aged, Prospective Studies, Regression Analysis, Nutrition Assessment, Body Mass Index, Case-Control Studies, Electric Impedance, Malnutrition

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Nutritional assessment: lean body mass depletion at hospital admission is associated with an increased length of stay

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