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Table 2 Baseline characteristics of patients in the low MIC group vs. the high MIC group

From: High fluoroquinolone MIC is associated with fluoroquinolone treatment failure in urinary tract infections caused by fluoroquinolone susceptible Escherichia coli

Variables High MIC
(N = 29)
Low MIC
(N = 246)
p value
N % N %
Median age [range] 64 [18–89] 55 [18–99] 0.35*
 Race
  White 15 51.7 89 36.2 0.14*
  Black 11 37.9 141 57.3
  Asian 1 3.5 4 1.6
  Other/unknown 2 6.9 12 4.9
 Co-morbidity
  Median Charlson index [range] 0 [0–2] 0 [0–2] 0.44*
  Having at least one Charlson conditions 8 27.6 54 22.0 0.49
  Acute myocardial infarction 1 3.5 4 1.6 0.43*
  Congestive heart failure 3 10.3 8 3.3 0.10*
  Peripheral vascular disease 0 0.0 6 2.4 0.99*
  Cerebrovascular disease 2 6.9 12 4.9 0.65*
  Dementia 0 0.0 3 1.2 0.99*
  COPD 1 3.5 14 5.7 0.99*
  Rheumatoid disease 0 0.0 1 0.4 0.99*
  Peptic ulcer 0 0.0 1 0.4 0.99*
  Mild liver disease 1 3.5 0 0.0 0.11*
  Moderate/severe liver disease 0 0.0 0 0.0
  Diabetes 1 3.5 3 1.2 0.36*
  Hemiplegia or paraplegia 0 0.0 1 0.4 0.99*
  Renal disease 2 6.9 6 2.4 0.20*
  Cancer 1 3.5 12 4.9 0.99*
  Metastatic cancer 0 0.0 7 2.9 0.99*
  AIDS 0 0.0 0 0.0
  1. * p value from the non-parametric test