Species | 1994–96 | 2004–06 | 2011–15 | P value |
---|---|---|---|---|
Escherichia coli | 30 (22%) | 34 (25%) | 40 (27%) | NS |
Enterobacter cloacae | 14 (10%) | 11 (8%) | 13 (9%) | NS |
Proteus mirabilis | 19 (14%)* | 12 (9%)† | 5 (3%)*† | * 0.002 † 0.05 |
Klebsiella pneumoniae | 14 (10%) | 6 (4%) | 14 (9%) | NS |
Klebsiella oxytoca | 1 (1%) | 4 (3%) | 3 (2%) | NS |
Pseudomonas aureginosa | 17 (12%)* | 5 (4%)* | 14 (9%) | * 0.01 |
Acinetobacter baumannii | 1 (1%) | 4 (3%) | 3 (2%) | NS |
Citrobacter freundii | 2 (1%) | 3 (2%) | 5 (3%) | NS |
Serratia marcensens | 1 (1%) | 4 (3%) | 2 (1%) | NS |
Other Gram negative | 26 (19%)* | 19 (14%) | 11 (7%)* | * < 0.01 |
Total Gram negative | 125 (91%)*† | 102 (74%)* | 110 (73%)† | * < 0.001 † < 0.001 |
Enterococcus faecalis | 10 (7%)* | 19 (14%) | 28 (19%)* | * 0.002 |
Enterococcus faecium | 0 (0%)* | 8 (6%)*† | 2 (1%)† | * 0.003 † 0.04 |
Staphylococcus aureus | 2 (1%) | 2 (1%) | 1 (1%) | NS |
Coagulase-negative staphylococci | 1 (1%) | 5 (4%) | 5 (3%) | NS |
Other Gram positive | 0 (0%) | 2 (1%) | 4 (3%) | NS |
Total Gram positive | 13 (9%)*† | 36 (26%)* | 40 (27%)† | * < 0.001 † 0.001 |
Total | 138 | 138 | 150 |