Research Article

Correlation of Renal Scarring to Urinary Tract Infections and Vesicoureteral Reflux in Children

Table 1

Patients’ characteristics.

ParameterNo renal scar group,
80 patients
100 units
Renal scar group,
70 patients
94 units
-value

Age at presentation, median (range)11.3 months (0.1–28.4)10.8 months (0.1–21.3)0.32
Gender
Male, n (%)
Female, n (%)

30 (37.5)
50 (62.5)

16 (22.9)
54 (77.1)

0.053
Laterality
Unilateral, n (%)
Bilateral, n (%)

60 (75)
20 (25)

46 (65.7)
24 (34.3)

0.21
Side
Right, n (%)
Left, n (%)

26 (26)
74 (74)
28 (29.8)
66 (70.2)
0.56
Mode of presentation
AHN, n (%)
Febrile UTI, n (%)
Afebrile UTI, n (%)

10 (12.5)
20 (25)
50 (62.5)
10 (14.3)
46 (65.7)
14 (20)

<0.001
SFU grade
SFU grade 0, n (%)
SFU grade 1 + 2, n (%)
SFU grade 3 + 4, n (%)
33 (33)
65 (65)
12 (12)
29 (30.9)
47 (50)
18 (19.1)

0.21
VUR grade
Grade 1 and 2, n (%)
Grade 3, n (%)
Grades 4 and 5, n (%)
50 (50)
28 (28)
22 (22)
10 (10.6)
40 (42.6)
44 (46.8)

<0.001
Recurrent FUTI, n (%)12 (15)52 (74.3)<0.001
Need for surgery, n (%)35/100 (35)93/94 (98.9)<0.001
Age at surgery, mean□SD38.6 months (17.4 – 59.9)34.1 months (11.6 – 65.8)0.19

FUTI: febrile urinary tract infections, AHN: antenatal hydronephrosis, SFU: Society of Fetal Urology, and VUR: vesicoureteral reflux.