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Table 3 Antimicrobial resistance rates of clinical K. pneumoniae strains

From: Clinical characteristics of patients with pneumonia caused by Klebsiella pneumoniae in Taiwan and prevalence of antimicrobial-resistant and hypervirulent strains: a retrospective study

VariableCAP (n = 68)HCAP (n = 74)HAP (n = 134)p value
CAP vs. HCAPHCAP vs. HAPCAP vs. HAP
Amikacin0 (0.0)0 (0.0)6 (4.5)N/A0.0910.099
Gentamicin3 (4.4)13 (17.6)22 (16.4)0.0160.8320.013
Cefuroxime7 (10.3)27 (36.5)64 (47.8)< 0.0010.117< 0.001
3rd generation cephalosporina5 (7.4)19 (25.7)57 (42.5)0.0040.016< 0.001
Ciprofloxacin3 (4.4)22 (29.7)52 (38.8)< 0.0010.191< 0.001
Levofloxacin3 (4.4)22 (29.7)51 (38.1)< 0.0010.228< 0.001
Ertapenem2 (2.9)11 (14.9)33 (24.6)0.0180.099< 0.001
Imipenem0 (0.0)0 (0.0)7 (5.2)N/A0.0520.098
Tigecycline2 (2.9)1 (1.4)10 (7.5)0.6070.1010.344
Wild-type antibiotic susceptibilityb60 (88.2)40 (54.1)58 (43.3)< 0.0010.149< 0.001
Multidrug resistancec7 (10.3)27 (36.5)66 (49.3)< 0.0010.076< 0.001
  1. Data are presented as number (%) of isolates resistant to the antibiotic indicated, unless stated otherwise
  2. N/A not applicable
  3. aIncluding either ceftriaxone and ceftazidime
  4. bWild-type antibiotic susceptibility was defined in the isolates as susceptibility to all antibiotics except for ampicillin
  5. cMultidrug resistance was defined in the isolates as nonsusceptibility to at least one agent in three or more antimicrobial categories
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