Research Article
Characterization of Integrons and Antimicrobial Resistance in Escherichia coli Sequence Type 131 Isolates
Table 4
Association between antibiotic profile and integron in E. coli ST131.
| | Antibiotic | Antibiotic susceptibility | value | | All isolates (n = 83) | Integron-positive isolates (n = 22) | Integron-negative isolates (n = 61) | | S (%) | I (%) | R (%) | S (%) | I (%) | R (%) | S (%) | I (%) | R (%) |
| | CTX | 25.3 | 3.6 | 71.1 | 31.8 | 0.0 | 68.2 | 23.0 | 4.9 | 72.1 | 0.726 | | CAZ | 49.4 | 24.1 | 26.5 | 54.5 | 9.1 | 36.4 | 47.5 | 29.5 | 23.0 | 0.222 | | FEP | 55.4 | 13.3 | 31.3 | 50.0 | 0.0 | 50.0 | 57.4 | 18.0 | 24.6 | 0.028 | | CIP | 28.9 | 1.2 | 69.9 | 27.3 | 4.5 | 68.2 | 29.5 | 0.0 | 70.5 | 0.840 | | LEV | 30.1 | 0.0 | 69.9 | 31.8 | 0.0 | 68.2 | 29.5 | 0.0 | 70.5 | 0.840 | | AK | 79.5 | 12.1 | 8.4 | 68.2 | 18.2 | 13.6 | 83.6 | 9.8 | 6.6 | 0.564 | | IPM | 96.4 | 0.0 | 3.6 | 100.0 | 0.0 | 0.0 | 95.1 | 0.0 | 4.9 | 0.562 | | TZP | 95.2 | 3.6 | 1.2 | 90.9 | 9.1 | 0.0 | 96.8 | 1.6 | 1.6 | 1.000 | | ATM | 37.4 | 26.5 | 36.1 | 50.0 | 4.5 | 45.5 | 32.8 | 34.4 | 32.8 | 0.289 | | SXT | 32.5 | 0.0 | 67.5 | 4.5 | 0.0 | 95.5 | 42.6 | 0.0 | 57.4 | 0.003 | | ETP | 98.8 | 1.2 | 0.0 | 100.0 | 0.0 | 0.0 | 98.4 | 1.6 | 0.0 | — |
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CTX, cefotaxime; CAZ, ceftazidime; FEP, cefepime; CIP, ciprofloxacin; LEV, levofloxacin; AK, amikacin; IPM, imipenem; TZP, piperacillin—tazobartan; ATM, aztreonam; SXT, trimethoprim-sulfamethoxazole; ETP, ertapenem.
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