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A comparison of demographic, clinical, and laboratory findings between bacteriuric infants with low vs. high leukocytes in urine |
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| Variable |
75 infants with 0–9 leukocytes/hpf in urine: Median: IQR*; or Percentages, 95%CI (N) |
170 infants with ≥ 10 leukocytes/hpf in urine: Median: IQR*; or Percentages, 95%CI (N) |
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| Gender (% Male) |
60: 48–71 (45/75) |
56: 49–64 (96/170) |
| Race (% Caucasian) |
37:26–49 (28/75) |
42: 34–50 (71/170) |
| Age (months) * |
1.8: 1.0–2.3 |
1.4: 0.9–2.2 |
| Triage temperature/°C * |
38.6: 38.3–39.3 |
38.9: 38.5–39.5 |
| Grades 4–5 VUR (%) § |
3.2: 0.4–11.1 (2/62) |
5.9: 2.7–10.9 (9/153) |
| Peripheral blood leukocyte count (cells/mm3) * |
14,700: 10,720–19,230 |
15,300: 11,000–19,900 |
| Cerebrospinal fluid leukocyte count (cells/mm3) * |
4: 2–7 |
4: 2–8 |
| Bladder catheterization (%) |
83: 72–90 (62/75) |
90: 84–94 (153/170) |
| Positive urine bacterial nitrite (%) |
20: 12–31 (15/75)† |
46: 38–54 (78/170)† |
| Hematuria: > 5 red blood cells in urine/hpf (%) |
7: 2–17 (4/57)† |
33: 26–41 (51/155)† |
| Bacterial counts in urine culture ≥ 100,000 cfu/ml (%) ‡ |
72: 60–82 (54/75)† |
93: 88–96 (158/170)† |
| Bacteremia and/or bacterial meningitis (%) |
0: 0–4 (0/75)† |
7: 4–12 (12/170)† |
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* Inter-quartile range for median values (otherwise, 95% confidence intervals for percentages with numbers). †Significant at a nominal p value < 0.05. ‡ Colony forming units per ml of a single bacterium in urine culture. §Vesico-ureteral reflux. | ||
Bonsu and Harper BMC Pediatrics 2007 7:24 doi:10.1186/1471-2431-7-24 |
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