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BMC Infectious Diseases

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Open Access 01-12-2021 | Malnutrition | Research article

Nutritional risk screening score as an independent predictor of nonventilator hospital-acquired pneumonia: a cohort study of 67,280 patients

Authors: Zhihui Chen, Hongmei Wu, Jiehong Jiang, Kun Xu, Shengchun Gao, Le Chen, Haihong Wang, Xiuyang Li

Published in: BMC Infectious Diseases | Issue 1/2021

Abstract

Background

Currently, the association of nutritional risk screening score with the development of nonventilator hospital-acquired pneumonia (NV-HAP) is unknown. This study investigated whether nutritional risk screening score is an independent predictor of NV-HAP.

Methods

This retrospective cohort study was conducted between September 2017 and June 2020 in a tertiary hospital in China. The tool of Nutritional Risk Screening 2002 (NRS-2002) was used for nutritional risk screening. A total score of ≥3 indicated a patient was “at nutritional risk.” Logistic regression was applied to explore the association between the NRS score and NV-HAP.

Results

A total of 67,280 unique patients were included in the study. The incidence of NV-HAP in the cohort for the NRS < 3 and ≥ 3 NRS group was 0.4% (232/62702) and 2.6% (121/4578), respectively. In a multivariable logistic regression model adjusted for all of the covariates, per 1-point increase in the NRS score was associated with a 30% higher risk of NV-HAP (OR = 1.30; 95%CI:1.19–1.43). Similarly, patients with NRS score ≥ 3 had a higher risk of NV-HAP with an odds ratio (OR) of 2.06 (confidence interval (CI): 1.58–2.70) than those with NRS score < 3. Subgroup analyses indicated that the association between the NRS score and the risk of NV-HAP was similar for most strata. Furthermore, the interaction analyses revealed no interactive role in the association between NRS score and NV-HAP.

Conclusion

NRS score is an independent predictor of NV-HAP, irrespective of the patient’s characteristics. NRS-2002 has the potential as a convenient tool for risk stratification of adult hospitalized patients with different NV-HAP risks.

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Title: Nutritional risk screening score as an independent predictor of nonventilator hospital-acquired pneumonia: a cohort study of 67,280 patients
Authors: Zhihui Chen
Hongmei Wu
Jiehong Jiang
Kun Xu
Shengchun Gao
Le Chen
Haihong Wang
Xiuyang Li
Publication date: 01-12-2021
Publisher: BioMed Central
Keywords: Malnutrition
Nosocomial Pneumonia
Published in: BMC Infectious Diseases / Issue 1/2021
Electronic ISSN: 1471-2334
DOI: https://doi.org/10.1186/s12879-021-06014-w

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