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Table 3 Antimicrobial resistance of the A. baumannii isolates resistant and susceptible to carbapenems

From: The first nationwide multicenter study of Acinetobacter baumannii recovered in Serbia: emergence of OXA-72, OXA-23 and NDM-1-producing isolates

Antimicrobial agent Overall resistance (n = 237) No. (%) Carbapenem-resistant A. baumannii
(n = 222) No. (%)
Carbapenem-susceptibileA. baumannii
(n = 15) No. (%)
P value
Ampicillin-sulbactam 140 (59.1%) 136 (61.3) 4 (26.7) P = 0.008
Piperacillin-tazobactam 233 (98.3%) 222 (100) 11 (73.3) P < 0.001
Ceftazidime 233 (98.3%) 222 (100) 11 (73.3) P < 0.001
Cefepime 233 (98.3%) 222 (100) 11 (73.3) P < 0.001
Imipenem 219 (92.4%) 219 (98.6) 0 (0) P < 0.001
Meropenem 222 (93.7%) 222 (100) 0 (0) P < 0.001
Amikacin 217 (91.6%) 209 (94.1) 8 (53.3) P < 0.001
Gentamicin 220 (92.8%) 210 (94.6) 10 (66.7) P < 0.001
Tobramycin 163 (68.8%) 159 (71.6) 4 (26.7) P = 0.000
Ciprofloxacin 231 (97.5%) 221 (99.5) 10 (66.7) P < 0.001
Levofloxacin 226 (95.4%) 217 (97.7) 9 (60) P < 0.001
Trimethoprim-sulfamethoxazole 209 (88.2%) 202 (91) 6 (40) P < 0.001
Tetracycline 222 (93.7%) 214 (96.4) 8 (53.3) P < 0.001
Tigecycline 59 (24.9%) 58 (26.1) 1 (6.7) P = 0.092
Colistin 10 (4.3%) 10 (4.5) 0 (0) P = 0.401