This retrospective observational study evaluates the prognostic value of the C-reactive protein-albumin-lymphocyte (CALLY) index in adult patients with sepsis admitted to the intensive care unit (ICU). The CALLY index reflects inflammatory, nutritional, and immunologic status and may serve as a predictor of clinical outcomes. CALLY Index values will be obtained on Day 0, Day 3, and Day 5 of ICU admission using routinely collected laboratory data. The primary objective is to determine the association between CALLY Index values and 30-day all-cause mortality. Secondary objectives include assessing the relationship between temporal CALLY changes and the development of acute kidney injury (AKI) within the first 7 days of ICU admission, as well as correlations between the Day-0 CALLY Index and established severity scores such as SOFA and APACHE II. As this retrospective study uses existing electronic medical records, no additional procedures or interventions will be performed, and no added risk to patients is involved.
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30-day All-Cause Mortality
Timeframe: 30 days after ICU admission