2.4. Data Collection and Outcome Measurement
POSTOPERATIVE COMPLICATION
The data were obtained from the electronic medical records, operative reports, and nursing charts. The collected data included demographics and the laboratory profiles of nutritional status such as total protein, albumin, prealbumin, transferrin, and cholesterol levels at the time of admission to the ICU after surgery. SOFA and mNUTRIC scores were also calculated at the time of ICU admission and recorded as well. The mNUTRIC score was calculated from five variables that included age, the acute physiology and chronic health evaluation (APACHE) II score, the SOFA score, the number of comorbidities, and the days from hospital to ICU admission, as described previously by Rahman et al. [Postoperative complications of Grade III or more, according to the Clavien–Dindo classification, were analyzed [