Figure 2.
Kaplan-Meier curves illustrating the differences in survival in groups stratified by “low” (≤102 mg/dL) and “high” (>102 mg/dL) serum transferrin levels. The cutoff value for transferrin was determined through the application of the Youden index to the ROC curve for serum transferrin in relation to 28-day mortality. Patients with “low” serum transferrin displayed significantly higher mortality at both 28 (24.0% vs 7.6%, P < 0.0001, log rank test) and 90 days (32.9% vs 17.4%, P < 0.0001, log rank test).