Cited by 501Nutrition and Health in AgingClinical Nutrition and GastroenterologyDialysis and Renal Disease Management

Protein-Energy Undernutrition Among Elderly Hospitalized Patients: A Prospective Study

Sullivan, Dennis H., Sun, Suzy, Walls, Robert C.·1999·JAMA

Abstract

CONTEXT: Numerous studies have identified strong correlations between the severity of nutritional deficits and an increased risk of subsequent morbid events among the hospitalized elderly, but whether inadequate nutrient intake during hospitalization contributes to such nutritional deficits or the risk of adverse outcomes is not known. OBJECTIVES: To identify the distribution of average daily nutrient intake among the nonterminally ill hospitalized elderly, ascertain what factors contribute to persistently low intakes, and determine whether the adequacy of nutrient intake correlates with the risk of mortality. DESIGN: Prospective cohort study conducted from 1994 to 1997. SETTING: University-affiliated Department of Veterans Affairs hospital. PATIENTS: A total of 497 patients 65 years or older (mean [SD] age, 74 [6] years; 97% male; 86% white) with a length of stay of 4 days or more. MAIN OUTCOME MEASURES: Daily in-hospital nutrient intake, in-hospital mortality, and 90-day mortality. RESULTS: A total of 102 patients (21%) had an average daily in-hospital nutrient intake of less than 50% of their calculated maintenance energy requirements. Admission illness severity, average length of stay, and admission albumin and prealbumin levels for this low nutrient group did not differ significantly from those of the remaining patients. However, the low nutrient group had lower mean (SD) discharge serum total cholesterol (154 [44] mg/dL [4 [1.1] mmol/L] vs 173 [42] mg/dL [4.5 [1.1] mmol/L]; P=.001), albumin (29.1 [6.7] vs 33.2 [6.1] g/L, P=.001), and prealbumin (162 [69] vs 205 [68] mg/L; P=.001) concentrations and a higher rate of in-hospital mortality (relative risk, 8.0; 95% confidence interval, 2.8-22.6) and 90-day mortality (relative risk, 2.9; 95% confidence interval, 1.4-6.1). Contributing to the problem of inadequate nutrient intake, patients were frequently ordered to have nothing by mouth and were not fed by another route. Neither canned supplements nor nutritional support were used effectively. CONCLUSIONS: Throughout their hospitalization, many elderly patients were maintained on nutrient intakes far less than their estimated maintenance energy requirements, which may contribute to an increased risk of mortality. Given the difficulties reversing established nutritional deficits in the elderly, greater efforts should be made to prevent the development of such deficits during hospitalization.

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Crossref · 10.1001/jama.281.21.2013

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Authors
Sullivan, D. H., Sun, S., & Walls, R. C.
Affiliations
Central Arkansas Veterans Healthcare System (US)
Venue
JAMA
Published
1999-06-02
Volume
281
Issue
21
Pages
2013
ISSN
  • 0002-9955 (ISSN-L)
  • 0098-7484
OpenAlex
W2087635405
Cited by
501
References
23
Citations by year
2026: 4 · 2025: 5 · 2024: 12 · 2023: 10 · 2022: 7 · 2021: 12 · 2020: 12 · 2019: 18 · 2018: 18 · 2017: 18 · 2016: 19 · 2015: 25 · 2014: 15 · 2013: 20 · 2012: 22
FWCI
12.27
Type
journal article
Language
en
Open access
closed
Locations
  • JAMA (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • University of Arkansas
  • University of Arkansas for Medical Sciences
Topics
  • Health Sciences › Medicine › Physiology › Nutrition and Health in Aging
  • Health Sciences › Nursing › Nutrition and Dietetics › Clinical Nutrition and Gastroenterology
  • Health Sciences › Medicine › Nephrology › Dialysis and Renal Disease Management
Keywords
protein-energy malnutrition, hospitalized older adults, in-hospital mortality, 90-day mortality, serum albumin, prealbumin, serum cholesterol, enteral nutrition, nutritional support, maintenance energy, veterans, length of hospital stay, nutritional assessment, malnutrition screening
MeSH terms
Aged, Arkansas, Energy Intake, Female, Hospitalization, Hospitals, Veterans, Humans, Male, Prospective Studies, Protein-Energy Malnutrition, Risk Factors, Geriatric Assessment, Nutrition Assessment, Multivariate Analysis, Hospital Mortality, Outcome Assessment, Health Care, Nutritional Support, Statistics, Nonparametric

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