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Table 2 Frequency of antibiotic susceptibility in relation to age

From: Antimicrobial resistance in community and nosocomial Escherichia coli urinary tract isolates, London 2005 – 2006

Antibiotic < 16 years ≥ 16 years P OR (CI95%)
  n n (%) Resistant n n (%) Resistant   
Ampicillin 1225 763 (62.3) 10484 5694 (54.3) ≤0.001 0.72 (0.64–0.81)
Amoxicillin/clavulanate 1109 143 (12.9) 9480 1296 (13.7) NS 1.07 (0.89–1.29)
Cefalexin 1225 100 (8.2) 10462 1104 (10.6) ≤0.01 1.33 (1.07–1.64)
Ciprofloxacin 1224 72 (5.9) 10468 1334 (12.7) ≤0.001 2.34 (1.83–2.99)
Gentamicin 1226 44 (3.6) 10482 693 (6.6) ≤0.001 1.90 (1.39–2.59)
Nitrofurantoin 1224 46 (3.8) 10462 643 (6.1) ≤0.001 1.68 (1.24–2.28)
Trimethoprim 1223 566 (46.3) 10471 4129 (39.4) ≤0.001 0.76 (0.67–0.85)
Cefpodoxime 1064 43 (4.0) 8787 691 (7.9) ≤0.001 2.03 (1.48–2.78)