Association between glucose-to-lymphocyte ratio and short-term mortality in critically ill subarachnoid hemorrhage patients: A retrospective cohort study

Abstract

Objective

We aimed to evaluate the association between admission glucose-to-lymphocyte ratio (GLR) and 28-day all-cause mortality in critically ill patients with non-traumatic SAH.

Methods

Data were extracted from the Medical Information Mart for Intensive Care IV database. The primary outcome was 28-day all-cause mortality. Cox regression analysis, Kaplan-Meier curves, restricted cubic spline curves, subgroup analysis and sensitivity analysis were used to assess the relationship between GLR and patient outcome.

Results

A total of 530 patients were included in this study. The Kaplan-Meier curves demonstrated that SAH patients in the high-GLR group (GLR ≧7.4) had a lower 28-day survival rate. A linear relationship was found between GLR and 28-day mortality. Multivariable Cox regression revealed that admission GLR was independently associated with 28-day mortality in critically ill SAH patients (hazard ratio [HR] = 1.03, 95 % confidence interval [CI] = 1.01–1.06, P = 0.011). SAH patients in the high-GLR group had a higher risk of 28-day mortality, compared with those in the low-GLR group (HR = 1.62, 95 % CI = 1.10–2.37, P = 0.015). Subgroup and sensitivity analyses supported the robustness of our results.

Conclusion

High GLR levels at admission were associated with increased 28-day all-cause mortality in critically ill SAH patients.