Evaluation of Novel Combined CBC‐Derived Systemic Inflammatory Ratios and Their Dynamic Changes as ICU Mortality Predictors, a Retrospective Cohort

ABSTRACT Background and Aims Novel biomarkers, such as neutrophil lymphocyte ratio, monocyte lymphocyte ratio, neutrophil to lymphocyte platelet ratio, derived neutrophil to lymphocyte ratio, systemic immune‐inflammation index, systemic inflammation response index, and aggregate index of systemic in...

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Main Authors: Helia Azmakan, Farshad Hashemian, Kaveh Kazemian
Format: Article
Language:English
Published: Wiley 2025-03-01
Series:Health Science Reports
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Online Access:https://doi.org/10.1002/hsr2.70441
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author Helia Azmakan
Farshad Hashemian
Kaveh Kazemian
author_facet Helia Azmakan
Farshad Hashemian
Kaveh Kazemian
author_sort Helia Azmakan
collection DOAJ
description ABSTRACT Background and Aims Novel biomarkers, such as neutrophil lymphocyte ratio, monocyte lymphocyte ratio, neutrophil to lymphocyte platelet ratio, derived neutrophil to lymphocyte ratio, systemic immune‐inflammation index, systemic inflammation response index, and aggregate index of systemic inflammation, have shown promising prognostic value, especially in ICU settings. We aimed to evaluate the potential of the mentioned factors as ICU mortality predictors in a heterogeneous ICU cohort. Methods and Materials We conducted a retrospective cohort study using data obtained from the intensive care unit (ICU) records of 311 patients. We evaluated the strength of the inflammatory parameters upon admission, 48 h later, and their dynamic changes within this period in predicting ICU mortality. We used multivariate logistic regression with backward elimination, which were further validated using ROC and calibration curves. Interaction terms were added to assess the possible modifications in predictive performance of ratios across various subgroups of patients. Results NLPR, 48 h post ICU admission (p < 0.001, OR: 7.3436, 95% CI: 3.2986–17.2619) and NLPR changes during the first 48 h of ICU admission (p = 0.018, OR: 2.3826, 95% CI: 1.2069–6.7112), were significant predictors of ICU mortality in the multivariate logistic regression models. The model, including 48‐h NLPR, had the highest AUC of ROC, calibration slope, and lowest AIC (0.8671, 0.8622, and 229.12, respectively). Also, the predictive performance of NLPR dynamic changes decreases significantly among patients with a background of CVA. Conclusions NLPR level, 48 h post‐ICU admission and its dynamic changes during the first 48 h of ICU stay, significantly predict ICU mortality among heterogeneous critically ill patients. These findings can serve as practical and accessible predictors of ICU mortality, particularly in settings, where traditional scoring systems may not be routinely available.
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spelling doaj-art-8adb41e268444b37a7e0e1dfc8f028cc2025-08-20T02:10:31ZengWileyHealth Science Reports2398-88352025-03-0183n/an/a10.1002/hsr2.70441Evaluation of Novel Combined CBC‐Derived Systemic Inflammatory Ratios and Their Dynamic Changes as ICU Mortality Predictors, a Retrospective CohortHelia Azmakan0Farshad Hashemian1Kaveh Kazemian2Department of Clinical Pharmacy, Faculty of Pharmacy Tehran Azad University of Medical Sciences Tehran IranDepartment of Clinical Pharmacy, Faculty of Pharmacy Tehran Azad University of Medical Sciences Tehran IranToxicology Research Center Aja University of Medical sciences Tehran IranABSTRACT Background and Aims Novel biomarkers, such as neutrophil lymphocyte ratio, monocyte lymphocyte ratio, neutrophil to lymphocyte platelet ratio, derived neutrophil to lymphocyte ratio, systemic immune‐inflammation index, systemic inflammation response index, and aggregate index of systemic inflammation, have shown promising prognostic value, especially in ICU settings. We aimed to evaluate the potential of the mentioned factors as ICU mortality predictors in a heterogeneous ICU cohort. Methods and Materials We conducted a retrospective cohort study using data obtained from the intensive care unit (ICU) records of 311 patients. We evaluated the strength of the inflammatory parameters upon admission, 48 h later, and their dynamic changes within this period in predicting ICU mortality. We used multivariate logistic regression with backward elimination, which were further validated using ROC and calibration curves. Interaction terms were added to assess the possible modifications in predictive performance of ratios across various subgroups of patients. Results NLPR, 48 h post ICU admission (p < 0.001, OR: 7.3436, 95% CI: 3.2986–17.2619) and NLPR changes during the first 48 h of ICU admission (p = 0.018, OR: 2.3826, 95% CI: 1.2069–6.7112), were significant predictors of ICU mortality in the multivariate logistic regression models. The model, including 48‐h NLPR, had the highest AUC of ROC, calibration slope, and lowest AIC (0.8671, 0.8622, and 229.12, respectively). Also, the predictive performance of NLPR dynamic changes decreases significantly among patients with a background of CVA. Conclusions NLPR level, 48 h post‐ICU admission and its dynamic changes during the first 48 h of ICU stay, significantly predict ICU mortality among heterogeneous critically ill patients. These findings can serve as practical and accessible predictors of ICU mortality, particularly in settings, where traditional scoring systems may not be routinely available.https://doi.org/10.1002/hsr2.70441critical illnessinflammatory markersintensive care unitlymphocytesmortalityneutrophils
spellingShingle Helia Azmakan
Farshad Hashemian
Kaveh Kazemian
Evaluation of Novel Combined CBC‐Derived Systemic Inflammatory Ratios and Their Dynamic Changes as ICU Mortality Predictors, a Retrospective Cohort
Health Science Reports
critical illness
inflammatory markers
intensive care unit
lymphocytes
mortality
neutrophils
title Evaluation of Novel Combined CBC‐Derived Systemic Inflammatory Ratios and Their Dynamic Changes as ICU Mortality Predictors, a Retrospective Cohort
title_full Evaluation of Novel Combined CBC‐Derived Systemic Inflammatory Ratios and Their Dynamic Changes as ICU Mortality Predictors, a Retrospective Cohort
title_fullStr Evaluation of Novel Combined CBC‐Derived Systemic Inflammatory Ratios and Their Dynamic Changes as ICU Mortality Predictors, a Retrospective Cohort
title_full_unstemmed Evaluation of Novel Combined CBC‐Derived Systemic Inflammatory Ratios and Their Dynamic Changes as ICU Mortality Predictors, a Retrospective Cohort
title_short Evaluation of Novel Combined CBC‐Derived Systemic Inflammatory Ratios and Their Dynamic Changes as ICU Mortality Predictors, a Retrospective Cohort
title_sort evaluation of novel combined cbc derived systemic inflammatory ratios and their dynamic changes as icu mortality predictors a retrospective cohort
topic critical illness
inflammatory markers
intensive care unit
lymphocytes
mortality
neutrophils
url https://doi.org/10.1002/hsr2.70441
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