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Chinese Journal of Clinical Laboratory Management(Electronic Edition) ›› 2025, Vol. 13 ›› Issue (01): 11-16. doi: 10.3877/cma.j.issn.2095-5820.2025.01.002

• Automation and Information System • Previous Articles     Next Articles

The relationship between international standardized ratio and mortality of patients with sepsisrelated acute kidney injury

Jiangdong Yuan1, Lizhen Zhou2, Pengcheng Duan2, Jiexuan Xu2, Jiang Li1, Murong Lu1,()   

  1. 1. Department of Intensive Care Unit of the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou Guangdong 510260, China
    2. Nursing Department of the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou Guangdong 510260, China
  • Received:2024-05-20 Online:2025-02-28 Published:2025-05-09
  • Contact: Murong Lu

Abstract:

Objective

To investigate the correlation between the international normalized ratio(INR) and outcomes in patients with sepsis-associated acute kidney injury(SA-AKI)using data from the Medical Information Mart for Intensive Care-Ⅳ (MIMIC-Ⅳ).

Methods

Using a retrospective queue design,information on adult SA-AKI patients with ICU admission records was extracted from the MIMIC-Ⅳ 2.0.Restricted cubic spline models and multivariable Cox proportional hazards regression were employed to evaluate the nonlinear relationship between INR levels and mortality. Patients were stratified by an ICU admission 24-hour INR cutoff for Kaplan-Meier survival analysis.

Results

Elevated INR was independently associated with increased mortality (adjusted HR=1.73, 95%CI: 1.59~1.88, P<0.001), and it shows a non-linear relationship with the prognosis of SA-AKI patients (P<0.001), with a cutoff value of 1.4.

Conclusion

High INR is an independent risk factor for predicting in-hospital mortality in SA-AKI patients. In the treatment process of SA-AKI patients, attention should be paid to the comprehensive evaluation of INR levels and other indicators.

Key words: international standardized ratio, sepsis, sepsis-related acute kidney injury, MIMIC-Ⅳ

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