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Table 1 Characteristics of children with urinary tract infection caused by E. coli or K. pneumoniae

From: Aminoglycoside therapy for childhood urinary tract infection due to extended-spectrum β-lactamase-producing Escherichia coli or Klebsiella pneumoniae

Factor Non-ESBL group ESBL group p-value
(n = 189) (n = 22)
Sex (male) 114 (60.3) 14 (63.6) 0.763
Age (months) 4.0 (3.0–7.0) 5.0 (4.0–6.5) 0.203
Pathogen    0.543
E. coli 183 (96.8) 21 (95.5)  
K. pneumoniae 6 (3.2) 1 (4.5)
Methods of urine collection    0.119
Urine bag 174 (92.1) 18 (81.8)  
Mid-stream urine 15 (7.9) 4 (18.2)
Previous history of urinary tract infection 9 (4.8) 1 (4.5) 1.000
Fever duration at the beginning of antibiotic therapy (days)a 2.0 (1.0-3.0) 2.0 (1.0-3.0) 0.923
Acute pyelonephritis on DMSA scanb 127 (80.4) 17 (81.0) 1.000
Vesicoureteral reflux on VCUGc 18 (15.9) 4 (23.5) 0.488
  1. Data are median (interquartile range) or no. (%) of cases
  2. ESBL extended-spectrum β-lactamase; DMSA 99mtechnetium dimercaptosuccinic acid; VCUG voiding cystoutrthrography
  3. aThe accurate duration of fever at the beginning of antibiotic therapy was not determined in one child in the non-ESBL group, who was treated in the outpatient clinic
  4. bDMSA scan was performed in 179 children (158 in the non-ESBL group, 21 in the ESBL group)
  5. cVCUG was performed in 130 children (113 in the non-ESBL group, 17 in the ESBL group)