Abstract

Objectives: Unplanned readmissions to the intensive care unit (ICU) are associated with poor clinical outcomes, prolonged hospital stays, and increased healthcare costs. Identifying the clinical and laboratory predictors of ICU readmission and its impact on in-hospital mortality remains critical for improving patient safety and optimizing utilization of resources. This study aimed to investigate the factors associated with ICU readmission and evaluate its relationship with mortality in a tertiary-care hospital setting.
Methods: In this retrospective cohort study, data of 1347 patients followed in Pulmonary ICU between 2016 and 2024 were retrospectively evaluated. Data of 153 patients (75 patients readmitted within 48 hours after discharge and 78 control cases randomly selected who were not readmitted during the same hospitalization) were analyzed. The two groups - those with and without ICU readmission - were compared in terms of demographic characteristics, clinical parameters, comorbidities, nutritional status, and laboratory findings. Logistic regression analysis was used to identify predictors of ICU mortality.
Results: Readmitted patients were older (p=0.001), had lower Glasgow Coma Scores (p

Key words: Readmission, ICU care, Risk factors, Comorbidity, Mortality, Morbidity