Association Between Geriatric Nutritional Risk Index and Critically Ill Patients With Pressure Injury: Analysis of

Yilei Zhang1,2, Chuan Qin3, Li Xu4

  • 1Oriental Pan-Vascular Devices Innovation College, University of Shanghai for Science and Technology, Shanghai, China.

Journal of Clinical Nursing
|December 13, 2024
PubMed

Insights

The Geriatric Nutritional Risk Index (GNRI) is a key predictor for preventing pressure injuries (PI) in elderly Intensive Care Unit (ICU) patients. Higher GNRI scores indicate a lower risk of PI development.

Area of Science:

  • Geriatric Medicine
  • Critical Care Medicine
  • Nutritional Science

Background:

  • Pressure injuries (PI) are a significant concern in Intensive Care Units (ICUs), affecting critically ill patients.
  • Limited research exists on the relationship between the Geriatric Nutritional Risk Index (GNRI) and PI occurrence in this vulnerable population.

Purpose of the Study:

  • To investigate the association between the Geriatric Nutritional Risk Index (GNRI) and the incidence of pressure injuries (PI).
  • To assess the predictive value of GNRI for PI development in elderly ICU patients.

Main Methods:

  • A retrospective, longitudinal, single-centre cohort study involving 5327 elderly ICU patients.
  • Utilized GNRI calculations and analyzed covariates including demographics, illness severity, comorbidities, and laboratory values.
  • Employed logistic regression, receiver operating characteristic curves, and propensity score modeling, adhering to STROBE-nut guidelines.

Main Results:

  • Each unit increase in GNRI was associated with a 3.7% decrease in the likelihood of PI occurrence in a fully adjusted model.
  • Patients with no identified nutritional risk (based on GNRI) had a significantly lower incidence of PI compared to at-risk patients.
  • The median age of the study population was 76 years, with 43.91% females.

Conclusions:

  • The Geriatric Nutritional Risk Index (GNRI) is a significant, independent predictor of pressure injury risk in elderly ICU patients.
  • Nutritional assessment using GNRI is crucial for the early identification and prevention of PI in this demographic.
  • Highlights the need for integrating nutritional strategies into clinical practice for elderly ICU patients to mitigate PI risk.
Abstract