Machine Learning–Augmented Traditional Analysis of Lactate vs Lactate-to-Albumin Ratio for Predicting Mortality Risk in Patients With Sepsis: Large-Scale Retrospective Study - Report - MDSpire

Enhanced Traditional Analysis of Lactate and Lactate-to-Albumin Ratio for Assessing Mortality Risk in Sepsis Patients: A Comprehensive Retrospective Study Using Machine Learning Techniques

  • By

  • Xiaodi Wang

  • Yi Xu

  • Weijun Xiao

  • Peng Dou

  • Yunxia Huang

  • Muhan Cao

  • Liang Luo

  • Qinghua Hou

  • July 16, 2026

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Clinical Report: Enhanced Traditional Analysis of Lactate and LAR in Sepsis

Overview

This study investigates the prognostic value of lactate and the lactate-to-albumin ratio (LAR) in predicting 28-day mortality in sepsis patients. Using a large multicenter ICU database, it compares the predictive capabilities of these biomarkers.

Background

Sepsis is a major global health concern, accounting for a significant proportion of deaths worldwide. Lactate and LAR are emerging biomarkers that may provide insights into patient prognosis in sepsis. Understanding their comparative effectiveness is essential.

Data Highlights

No numerical data available in the provided source material.

Key Findings

  • LAR outperforms lactate alone in predicting hospital mortality (AUC 0.74 vs 0.70).
  • Prior studies have linked elevated lactate and LAR to higher mortality rates in various critical illnesses.
  • Sepsis accounts for approximately 19.7% of all deaths globally, with significant regional mortality variations.
  • This study is the first to formally test LAR's superiority over lactate using paired statistical testing.
  • Elevated lactate may arise from multiple mechanisms, complicating its interpretation as a sole indicator of tissue hypoxia.

Clinical Implications

The findings indicate that LAR may provide a prognostic tool for assessing mortality risk in sepsis patients compared to lactate alone.

Conclusion

This study presents LAR as a biomarker for predicting mortality in sepsis.

Related Resources & Content

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  6. Frontiers in Pediatrics — Association between the albumin-to-lymphocyte ratio and short-term mortality in critically Ill pediatric patients: a retrospective cohort study and machine learning analysis
  7. Surviving Sepsis Campaign Adult Guidelines
  8. Association of lactate-to-albumin ratio with 28-day mortality in elderly sepsis patients: a retrospective MIMIC-IV database analysis | BMC Infectious Diseases | Springer Nature Link
  9. Prediction models for mortality in patients with sepsis: a systematic review and meta-analysis

Original Source(s)

Machine Learning–Augmented Traditional Analysis of Lactate vs Lactate-to-Albumin Ratio for Predicting Mortality Risk in Patients With Sepsis: Large-Scale Retrospective Study

  • by Xiaodi Wang, Yi Xu, Weijun Xiao, Peng Dou, Yunxia Huang, Muhan Cao, Liang Luo, Qinghua Hou

  • July 16, 2026

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