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Top five most prevalent Gram-negative bacteria associated with urinary-tract infections from SMART between 2009 and 2011.
| UTI Pathogen | N | % |
|---|---|---|
| Escherichia coli | 10,956 | 44.3 |
| Klebsiella pneumoniae | 2,906 | 11.8 |
| Pseudomonas aeruginosa | 1,331 | 5.4 |
| Proteus mirabilis | 1,137 | 4.6 |
| Enterobacter cloacae | 617 | 2.5 |
| Other | 7,758 | 31.4 |
| Total | 24,705 | 100.0 |
