Table 2.
Antimicrobial resistance of Escherichia coli isolates to the tested antibiotics
| Resistance rate (%) | ||||
|---|---|---|---|---|
| Isolate/Antibiotics | 2008–2011 | 2012–2015 | Total | P for Trend Test |
| All Escherichia coli | ||||
| AMK | 7.78 | 14.16 | 11.33 | 0.154 |
| AMP | 97.92 | 96.49 | 97.14 | 0.537 |
| SAM | 81.97 | 87.93 | 85.88 | 0.279 |
| TZP | 23.47 | 25.00 | 24.30 | 0.795 |
| CZO | 92.55 | 91.30 | 91.87 | 0.742 |
| CAZ | 81.82 | 69.83 | 75.35 | 0.042 |
| FEP | 75.51 | 62.07 | 68.22 | 0.035 |
| IPM | 14.29 | 25.86 | 20.56 | 0.037 |
| CIP | 90.16 | 79.13 | 82.95 | 0.064 |
| ESBL+ | ||||
| AMK | 6.78 | 12.33 | 9.85 | 0.287 |
| AMP | 100.00 | 100.00 | 100.00 | – |
| SAM | 77.78 | 93.15 | 88.07 | 0.020 |
| TZP | 20.31 | 6.85 | 13.14 | 0.020 |
| SXT | 84.21 | 73.61 | 77.27 | 0.207 |
| CZO | 100.00 | 100.00 | 100.00 | – |
| CAZ | 89.23 | 68.49 | 78.26 | 0.003 |
| FEP | 81.25 | 60.27 | 70.07 | 0.007 |
| IPM | 12.31 | 8.22 | 10.14 | 0.427 |
| CIP | 86.11 | 80.82 | 82.57 | 0.494 |
| ESBL- | ||||
| AMK | 6.67 | 16.22 | 13.46 | 0.361 |
| AMP | 88.24 | 89.74 | 89.29 | 0.867 |
| SAM | 77.78 | 77.50 | 77.55 | 0.986 |
| ZP | 35.29 | 57.50 | 50.88 | 0.125 |
| SXT | 88.89 | 67.50 | 71.43 | 0.199 |
| CZO | 58.82 | 74.36 | 69.64 | 0.245 |
| CTT | 28.57 | 70.00 | 63.83 | 0.035 |
| CAZ | 52.94 | 70.00 | 64.91 | 0.217 |
| FEP | 52.94 | 62.50 | 59.65 | 0.501 |
| IPM | 43.75 | 57.50 | 53.57 | 0.351 |
| CIP | 88.89 | 77.50 | 79.59 | 0.444 |
| Not all tested antibiotics are listed | ||||
AMK Amikacin, AMP Ampicillin, SAM Ampicillin/Sulbactam, CAZ Ceftazidime, efepime, CTT Cefotetan, CZO Cefazolin, IPM Imipenem, TZP Piperacillin-Tazobactam, CIP Ciprofloxacin
Data in boldface reflected p values < 0.05