Prospective cohort study realized in the adult intensive care unit (ICU) of a University Hospital to evaluate the utility of the TISS 28 score, using a protocol applied to 1641 patients from January 2000 to December 2002, based on the direct observation of patients and medical and nurse registers of therapeutic procedures and monitoring. The Chi-square test, Student's t test and Kruskal-Wallis were used to compare the TISS 28 score and some characteristics of survivors and no survivors patients. The results showed that the TISS 28 score stratified the patients by severity level and evidenced the relation between high scores and mortality of the analyzed patients.
severity of illness index; mortality; critical illness; intensive care
