TABLE 2

Descriptive measures of in-house (clinic) microscopic leukocyte counts and reported routine hospital MSU culture results for each study groupa

Diagnostic testValued for:
New patients (n = 33)Relapsed patients (n = 30)Controls (n = 29)
Clinic microscopic leukocyte count (log10 no. of wbc/µl)
    Mean ± SD (95% CI)1.7 ± 0.9 (0.3–1.0)0.7 ± 1.0 (0.4–1.1)0.2 ± 0.4 (0.1–0.3)
    Median (95% CI)0.3 (0.0–0.3)0.5 (0.0–0.8)0.0 (0.0–0.8)
Frequency (% of group)
    0 wbc/µl15 (45.5)12 (40.0)20 (69.0)
    1–9 wbc/µl11 (33.3)11 (36.7)8 (27.6)
    ≥10 wbc/µl7 (21.2)7 (23.3)1 (3.4)
No. (%) of patients with the following hospital midstream urine culture findings:
    No significant growthb21 (63.6)23 (76.7)22 (75.9)
    Mixed growthc of two organisms3 (9.1)2 (6.7)4 (13.8)
    Mixed growth of three organisms4 (12.1)2 (6.7)1 (3.4)
    >105 CFU/ml of one organism4 (12.1)2 (6.7)2 (6.9)
  • a Abbreviations: wbc, white blood cell; CI, confidence interval.

  • b Less than 105 organisms/ml or the growth of ≥2 organisms at <100 colonies.

  • c Greater than 100 colonies.

  • d Midstream urine culture results were untraceable for new patients (n = 1) and relapsed patients (n = 1).