TABLE 4.

Laboratory Results in the Course of Episodes With a Final Diagnosis of UTI Treated at the DTC or in the Hospital

VariableDTC UTI Episodes (n = 178)Hospitalized UTI Episodes (n = 62)
Predominant bacteria in urine culture, no. (%)
    E. coli162 (91.0)48 (77.4)
    Proteus mirabilis2 (1.1)0
    Klebsiella species4 (2.2)1 (1.6)
    Enterococcus2 (1.1)7 (11.3)
    Enterobacter cloacae1 (0.6)1 (1.6)
    Citrobacter species1 (0.6)2 (3.2)
    Pseudomonas species01 (1.6)
    Unidentified3 (1.7)2 (3.2)
    Negative*3 (1.7)0
Blood culture, no. (%)
    Negative168 (94.4)55 (88.7)
    E. coli2 (1.1)2 (3.2)
    Enterococcus01 (1.6)
    Citrobacter species01 (1.6)
    Contaminant2 (1.1)0
    Not done6 (3.4)3 (4.8)
Absolute white blood cell count, ×109 cells/L, mean (SD)16.7 (6.2)17.8 (7.6)
Serum creatinine, mmol/L, mean (SD)33.4 (7.9)37.6 (18.5)
  • * Of patients with negative urine culture results, 2 had renal dimercaptosuccinic acid scan results consistent with acute pyelonephritis and 1 had high-grade VUR and symptoms highly suggestive of pyelonephritis.