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Table 4 Theoretic risk of failure with empiric antibiotic therapy (%) due to resistance rates in urine cultures from elderly patients (both NH and CD) in Vestfold County Norway 2010a

From: Antibiotic resistance patterns of bacteria causing urinary tract infections in the elderly living in nursing homes versus the elderly living at home: an observational study

Empiric antibiotic

Female

Male

Ampicillin

29.7

23.6

Ciprofloxacin

13.0

23.4

Mecillinam

11.5

24.2

Nitrofurantoin

11.4

15.9

Trimethoprim

21.2

17.8

  1. aBased on the five most commonly cultured bacteria; E coli, E faecalis, K pneumoniae, P mirabilis, and P aeruginosa. The percentages are calculated by multiplying the percentage each microbe was responsible for by the resistance rate for that microbe