Baseline characteristics of patient cohort Characteristics E coli BSIs (n=115) K pneumoniae BSIs (n=50) Total (n=165) Sex (male) n (%) 70 (60.9) 37 (74.0) 107 (64.8) Mean of age (years) 62.3±16.2 62.0±17.2 62.3±16.5 60 years old n (%) 62 (53.9) 26 (52.0) 88 (53.3) Pre-existing conditions n (%) 73 (63.5) 27 (54.0) 100 (60.6) Primary source infection n (%) 95 (82.6) 44 (88.0) 139 (84.2) Mean of SOFA (points) 3.36±3.05 3.62±3.1 3.44±3.06 While blood cell (G / L) 16.9±13, 7 16.4±8.9 16.8±12.4 Neutrophile (G / L) 13.7±9.9 13.9±8.0 13.8±9.3 Platelet (G / L) 190±118 170±130 184±122 Prothrombin (%) 76.5±22.8 81.7±21.6 77.7±22.5 Pro-calcitonin (ng / L) 32.53±38.23 29.54±32.49 31.58±36.41 Lactate (mmol / L) 5.34±3.53 4.89±3.18 5.14±3.34 Duration of fever after diagnosis (days) 5.2±2.5 6.7±3.8 5.6±3.0 Length of hospital stay (days) 19.9±14.7 27.7±27.6 22.3±19.8 Septic shock n (%) 19 (16.5) 14 (28.0) 33 (20.0%) Mortality n (%) 18 (15.7) 12 (24.0) 30 (18.2%) The results show that the most patients were male (64.8%) and over 60 years old (53.3%) with pre-existing conditions. The primary source infections were reported 82.6% with E coli-BSIs and 88.0% with K pneumoniae-BSIs.