Prognostic value of semi-quantitative bacteruria counts in the diagnosis of group B streptococcus urinary tract infection: a 4-year retrospective study in adult patients

Table 3 Urinalysis data for adult patients diagnosed with acute GBS UTI or GBS ABU at University of Alabama at Birmingham Hospital during the study period

	UA for All Cases (n=245)	UA for Acute UTI Cases (n=75)	UA for ABU Cases (n=170)	P Value
Mean s-QBC (CFU/mL)	59,792 ± 2,350	73,347 ± 3,823	53,812 ± 2,825	<0.001
Specific Gravity	1.016 ± 0.008	1.016 ± 0.008	1.005 ± 0.085	0.354
pH	6.36 ± 0.8	6.41 ± 0.1	6.33 ± 0.1	0.522
Proteinuria	0.77 ± 1.10 (118, 48.1%)	0.57 ± 0.09 (35, 46.6%)	0.86 ± 0.09 (83, 48.8%)	0.030^†
Glucose	0.26 ± 0.70 (46, 19.2%)	0.21 ± 0.08 (8, 10.1%)	0.29 ± 0.05 (38, 22.4%)	0.461
Ketones	0.16 ± 0.51 (33, 13.5%)	0.13 ± 0.04 (11, 14.7%)	0.17 ± 0.04 (22, 12.9%)	0.564
Bilirubin	0.01 ± 0.11 (3, 0.01%)	0.01 ± 0.01 (1, 1.3%)	0.01 ± 0.01 (2, 1.1%)	0.918
Hematuria	0.68 ± 0.94 (119, 48.6%)	0.90 ± 0.11 (45, 60.0%)	0.59 ± 0.07 (74, 43.5%)	0.025^†

Statistical Comparisons: † All Cases with UA C/W Acute GBS UTI compared to All Cases with UA C/W GBS ABU. Numbers in parentheses in columns represent the n of subjects who exhibited a positive result for this test, followed by this number expressed as a percentage of the total n of cases in the group.

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