Table.
Age, sex, imaging results, and operations in children according to cause of first urinary tract infection. Values are numbers (percentages) unless stated otherwise
| E coli | Proteus | Klebsiella | Enterococcus | Coagulase negative staphylococcus | |
|---|---|---|---|---|---|
| No of patients | 92 | 26 | 26 | 26 | 14 |
| Age <2 years (boys/girls) | 39/19 | 12/2 | 12/7 | 11/8 | 4/2 |
| Aged ⩾2 years (boys/girls) | 17/17 | 7/5 | 3/4 | 6/1 | 1/7 |
| Mean (SD) C reactive protein (mg/l) | 69 (47) (n=74) | 23 (24)*** (n=16) | 83 (62) (n=16) | 88 (66) (n=23) | 39 (53) (n=9) |
| Reflux | 30 (33) | 2 (8)* | 16 (62)** | 16 (62)** | 5 (36) |
| Grade 1-3 | 26 | 1** | 9 | 9 | 3 |
| Grade 4-5 | 4 | 1 | 7** | 7** | 2 |
| Obstruction | 1 (1) | 0 | 4 (15)** | 3 (12)* | 2 (14)* |
| Other anatomical abnormalities† | 4 (4) | 0 | 2 (8) | 0 | 1 (7) |
| Children with abnormalities‡ | 32 (35) | 2 (8)** | 18 (69)** | 17 (65)** | 6 (43) |
| Operation or injection therapy for reflux | 7 (8) | 2 (8) | 10 (38)*** | 12 (46)*** | 5 (36)** |
*
P<0.05, **P<0.01, ***P<0.001 compared with E coli infections.
†
These patients had ureter duplex, except patient with staphylococcus who had a polycystic kidney.
‡
Some patients had both vesicoureteral reflux and other anatomical abnormalities.