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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