Characteristics and Outcomes of Patients Readmitted to The Medical Intensive Care Unit: A Retrospective Study in a Tertiary Hospital in Taiwan

This study aimed to evaluate outcomes of patients and the difference between geriatric and young patients readmitted to the medical intensive care unit. From January 1, 2011 to December 31, 2013, 117 medical ICU readmissions were included. The study population had a mean Charlson comorbidity score of 7.2 and stayed 12.3 days in the ward before ICU readmission. The most common cause for readmission was respiratory disease in 49 (41.9%) patients, and the average readmission duration was 10.1 days. There were 74 patients (63.2%) who survived. Among the survivors, only 50 were discharged from the hospital. The overall mean duration of hospital stay was 51.5 days. Those who survived the hospital course were younger (64.1 vs. 75.6 years) and had a higher coma score (10.2 vs. 7.5), lower Charlson score (6.4 vs. 8.6), and lower APACHE II score (24.4 vs. 31.3) (p