Table 3 Antibiotic sensitivity profile of Escherichia coli in the colonization group and invasive infection group [% (n/N)]
Antibiotic | Colonization group (n = 843) | Invasive infection group | χ2 values | P | ||
|---|---|---|---|---|---|---|
E. coli-EOD (n = 66) | E. coli-LOD (n = 56) | |||||
β-lactams | Ampicillin | 23.49 (198/843) | 28.79 (19/66) | 25.00 (14/56) | 0.981 | 0.612 |
Piperacillin | 23.84 (201/843) | 28.79 (19/66) | 26.79 (15/56) | 1.000 | 0.610 | |
Cefazolin | 46.26 (390/843) | 66.67 (44/66) | 57.14 (32/56) | 12.073 | 0.002 | |
Ceftazidime | 79.48 (670/843) | 95.45 (63/66) | 91.07 (51/56) | 14.024 | 0.001 | |
Cefotaxime | 58.24 (491/843) | 86.36 (57/66) | 73.21 (41/56) | 24.063 | 0.000 | |
Cefepime | 61.92 (522/843) | 87.88 (58/66) | 71.43 (40/56) | 19.290 | 0.000 | |
Compound preparations of β-lactam inhibitors | Amoxicillin/clavulanic acid | 70.23 (592/843) | 89.39 (59/66) | 73.21 (41/56) | 11.148 | 0.004 |
Ampicillin/sulbactam | 47.57 (401/843) | 50.00 (33/66) | 55.36 (31/56) | 1.370 | 0.501 | |
Cefoperazone /sulbactam | 100.00 (843/843) | 100.00 (66/66) | 98.21 (55/56) | – | – | |
Piperacillin/tazobactam | 95.14 (802/843) | 100.00 (66/66) | 94.64 (53/56) | 3.412 | 0.184 | |
Carbapenems | Imipenem | 100.00 (843/843) | 100.00 (66/66) | 100.00 (56/56) | – | – |
Meropenem | 100.00 (843/843) | 100.00 (66/66) | 100.00 (56/56) | – | – | |
Quinolones | Levofloxacin | 74.61 (629/843) | 68.18 (45/66) | 67.86 (38/56) | 2.392 | 0.303 |
Ciprofloxacin | 69.75 (588/843) | 65.15 (43/66) | 62.50 (35/56) | 1.791 | 0.412 | |
Aminoglycosides | Gentamicin | 72.84 (614/843) | 78.79 (52/66) | 83.93 (47/56) | 4.230 | 0.124 |
Amikacin | 100.00 (843/843) | 100.00 (66/66) | 100.00 (56/56) | – | – | |
Sulfonamides | Compound sulfamethoxazole | 52.31 (441/843) | 51.52 (34/66) | 55.36 (31/56) | 0.217 | 0.892 |
Other antibiotics | Aztreonam | 69.51 (586/843) | 93.94 (62/66) | 83.93 (47/56) | 28.223 | 0.000 |