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Table 1 Bacterial species isolated from urine of men with benign prostatic hyperplasia and indwelling catheters in given time periods

From: Catheter-associated bacterial flora in patients with benign prostatic hyperplasia: shift in antimicrobial susceptibility pattern

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  
  1. The * or † character was used to determine which pair of values in the row was compared with a statistical test