The simplified acute physiological score (SAPS II), the only valid score in sepsis according Pilly (1997) includes 17 variables: 12 physiological variables, age, type of admission and 3 variables that reffer to the background diseases: AIDS, neoplasm and haematologic malignant diseases. SAPS II was used in 30 patients with sepsis. The evaluation for each variable were between 0-26 points. Our data suggest that values over 0.552 coincided with death in 12 patients and values below 0.552 coincided with a favourable course in 18 patients.