The study, led by Xianwei Jin and colleagues from the Department of Medicine, Graduate School, Nanchang University, China, aimed to investigate the relationship between SHR—a measure comparing acute blood glucose elevation to baseline glycemic status—and ARDS risk in sepsis patients. Data were sourced from the Medical Information Mart for Intensive Care IV (MIMIC-IV) database, a comprehensive repository of intensive care unit patient records in the United States.
Patients were stratified into four groups based on SHR quartiles. The primary outcome assessed was the occurrence of in-hospital ARDS. Researchers employed multivariate Cox proportional-hazards regression and restricted cubic spline models to examine the correlation between SHR and ARDS risk. Subgroup analyses and Kaplan-Meier survival curves further supported the findings.
The study led to the following notable findings:
- 34% of participants developed acute respiratory distress syndrome (ARDS).
- 13% of participants died during hospitalization.
- The stress hyperglycemia ratio (SHR) was independently associated with both ARDS and in-hospital mortality after adjusting for confounders.
- Risk of ARDS and mortality increased approximately linearly with rising SHR levels, especially for mild and moderate ARDS.
- Subgroup analyses showed that the association between SHR and adverse outcomes was consistent across different patient populations.
According to the researchers, these findings suggest that SHR can serve as a valuable early indicator for identifying patients with sepsis at high risk of ARDS, potentially enabling timely interventions and improved clinical management. The study emphasizes the clinical relevance of monitoring stress-induced hyperglycemia as part of comprehensive sepsis care.
The study had some limitations: it included only U.S. patients, mostly White, limiting generalizability; its retrospective, observational design precludes causal conclusions; and as a single-center study with a modest sample size, residual confounding may still affect the results.
The authors recommend that prospective, multicenter studies be conducted to validate these results and further explore the mechanistic links between SHR and ARDS.
"Elevated SHR is significantly linked to higher in-hospital mortality and ARDS risk in patients with sepsis. Monitoring SHR could help clinicians identify high-risk individuals early, enabling better risk stratification and guiding timely interventions. Future prospective studies are necessary to confirm these findings and inform clinical strategies for managing stress hyperglycemia in sepsis patients," the authors concluded.
Reference:
Jin, X., Deng, W., Weng, Q., Liu, F., & Min, J. (2025). Correlation between stress hyperglycemia ratio and risk of acute respiratory distress syndrome in patients with sepsis: A MIMIC-IV cohort study. Scientific Reports, 15(1), 1-13. https://doi.org/10.1038/s41598-025-18349-4
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