Skip to main content

Table 2 Number of E. coli 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 = 2330)

Samples obtained after 2 to 5 hospital days (N = 525)

Samples obtained after 5 hospital days (N = 1805)

Urine

AM-CL, Amox/AMP, Quinolones, TMP-SMX

1503 (65%)

377 (72%)

1126 (62%)

CFP

256 (11%)

53 (10%)

203 (11%)

CFT, Gent, MERa, PIP-TZ,

258 (11%)

55 (10%)

203 (11%)

Blood

AM-CL, Amox/AMP, CFP, CFT, Gentamicin, MERa, PIP-TZ, Quinolones, TMP-SMX

264 (11%)

32 (6%)

232 (13%)

Respiratory -tract

AM-CL, Amox/AMP, CFP, CFT, Gent, MERa, PIP-TZ, Quinolones, TMP-SMX

86 (4%)

29 (6%)

57 (3%)

Wound swabs

AM-CL, Amox/AMP, CFP, CFT, Gent, MERa, PIP-TZ, Quinolones

83 (4%)

12 (2%)

71 (4%)

TMP-SMX

82 (4%)

12 (2%)

70 (4%)

Other

AM-CL, Amox/AMP, CFP, CFT, Gent, MERa, PIP-TZ, Quinolones, TMP-SMX

394 (17%)

75 (14%)

319 (18%)

  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 all samples were susceptible to Meropenem