Figure 1: Comparison of (A) median percentage SAPS II-predicted mortality risk and (B) median length of stay (LOS) in hospital in ventilated patients with single cultures of Acinetobacter baumannii alone and those with entirely negative respiratory cultures. NEG= negative cultures (n=95); TOTAL= all A. baumannii cases (n=43); A= cases resistant to β-lactam/β-lactamase antibiotics (n=27); B= resistant to aminoglycosides (n=22); C= resistant to 3rd generation cephalosporins (n=13); D= resistant to cefepime (n=22); E= resistant to carbopenams (n=19). Bar = median; * = p<0.05; ** = p<0.01.