Sepsis patients without HIV infection (all stages), neutropenia (neutrophil count < 1 × 109/L), exposure to glucocorticoids (> 0.5 mg/kg for > 30 d) and/or immunosuppressive or cytotoxic medications, solid organ transplantation, allogeneic or autologous stem cell transplantation, hematological malignancy, or solid tumor.

Sepsis patients with HIV infection (all stages), neutropenia (neutrophil count < 1 × 109/L), exposure to glucocorticoids (> 0.5 mg/kg for > 30 d) and/or immunosuppressive or cytotoxic medications, solid organ transplantation, allogeneic or autologous stem cell transplantation, hematological malignancy, or solid tumor.

Patients who admitted intensive care unit without sepsis

For the analysis, plasma presepsin levels on Day 0 will be used. Sepsis was made on Day 7 or day of discharge. ROC-AUC of presepsin for discriminating between immunocompromised and immunocompetent patients is compared to that of procalcitonin.

For the analysis, we will evaluate the association between presepsin and survival at ICU discharge or day 28 after enrollment