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Table 4 Number of K. pneumoniae samples with antimicrobial susceptibility testing (AST) by origin across 18 departments in the years 2008–2016

From: Intra-hospital differences in antibiotic use correlate with antimicrobial resistance rate in Escherichia coli and Klebsiella pneumoniae: a retrospective observational study

Origin of the samples Tested for All nosocomial samples (N = 648) Samples obtained after 2 to 5 hospital days (N = 124) Samples obtained after 5 hospital days (N = 524)
Urine AM-CL, Amox/AMPb, Quinolones, TMP-SMX 329 (51%) 72 (58%) 257 (49%)
CFP, CFT, Gent, MERa, PIP-TZ 51 (8%) 12 (10%) 39 (7%)
Blood AM-CL, Amox/AMPb, CFP, CFT, Gent, MERa, PIP-TZ, Quinolones, TMP-SMX 89 (14%) 9 (7%) 80 (15%)
Respiratory samples AM-CL, Amox/AMPb, CFP, CFT, Gent, MERa, PIP-TZ, Quinolones, TMP-SMX 69 (11%) 16 (13%) 53 (10%)
Wound swabs AM-CL, Amox/AMPb, CFP, CFT, Gent, MERa, PIP-TZ, Quinolones, TMP-SMX 22 (3%) 3 (2%) 19 (4%)
Other AM-CL, Amox/AMPb, CFP, CFT, Gent, MERa, PIP-TZ, Quinolones, TMP-SMX 139 (21%) 24 (19%) 115 (22%)
PIP-TZ 138 (21%) 24 (19%) 114 (22%)
  1. Abbreviations: Amox amoxicillin, AMP ampicillin, AM-CL amoxicillin-clavulanic acid, CFP cefepime, CFT ceftriaxone, Gent gentamicin, MER meropenem, PIP-TZ piperacillin-tazobactam, TMP-SMX trimethoprim-sulfamethoxazole
  2. aNot included in the models for resistance because only two samples were resistant to Meropenem
  3. bNot included in the models for resistance because all samples were resistant to Amoxicillin/Ampicillin
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