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Table 3 Resistance rates for UTI antibiotics in Escherichia coli 1 , voided urine specimens

From: Antimicrobial resistance in urinary pathogens among Swedish nursing home residents remains low: a cross-sectional study comparing antimicrobial resistance from 2003 to 2012

  2003 (n = 143)2 2012 (n = 117)2 P-value3
Mecillinam 4.2% (6) 7.7% (9) 0.23
Ampicillin 18% (26) 21% (25) 0.52
Cefadroxil 0.0% (0) 2.6% (3) 0.090
Trimethoprim 13% (18) 12% (14) 0.88
Nitrofurantoin 0.70% (1) 0.85% (1) 1.0
Nalidixic acid 12% (17) Not tested ---
Ciprofloxacin Not tested 3.4% (4) ---
Classic ESBL4   1.7% (2)  
AmpC5   0.85% (1)  
  1. 1Sparse and significant growth of Escherichia coli.
  2. 2Proportion of resistant Escherichia coli % (number).
  3. 3Pearson chi-square and, when appropriate, Fisher’s exact test.
  4. 4 E. coli producing extended spectrum beta-lactamase enzymes.
  5. 5 E. coli with plasmid mediated AmpC production.