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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