Microbial Predominance and Antimicrobial Resistance in a Tertiary Hospital in Northwest China: A Six-Year Retrospective Study of Outpatients and Patients Visiting the Emergency Department
Table 6
Antimicrobial resistance percentage (%) of top three Gram-negative bacilli among common antimicrobial agents between 2013 and 2018 from outpatients and patients visiting emergency department.
Antimicrobial agent
Escherichia coli (%) (n = 1035)
Klebsiella pneumoniae (%) (n = 182)
Pseudomonas aeruginosa (%) (n = 107)
Penicillins
Piperacillin
86.4
17.6
14.9
Ampicillin
93.2
_
−
Cephems
Cefazolin
79.5
17.6
−
Cefuroxime
80.7
23.5
−
Ceftriaxone
60.9
33.5
−
Ceftazidime
54.5
17.6
15.0
Cefepime
33.0
5.9
7.5
Cefotetan
5.7
0.0
_
β-lactam combination agents
Ampicillin/Shubatan
70.5
23.5
_
Piperacillin/Tazobactam
8.0
0.0
7.5
Cefoperazone/sulbactam
8.4
0.0
10.3
Fluoroquinolones
Ciprofloxacin
80.7
11.8
0.0
Levofloxacin
76.1
11.8
0.0
Aminoglycosides
Amikacin
2.3
0.0
7.5
Gentamicin
39.8
5.9
7.5
Tobramycin
21.6
0.0
7.5
Others
Aztreonam
60.2
5.9
22.4
Imipenem
0.0
1.1
18.7
Meropenem
0.0
1.1
18.7
Trimethoprim/sulfamethoxazole
62.5
29.4
_
The number of non-repetitive isolates for each species. The result is not available.
