Table 1.

Baseline clinical characteristics of 822 infants with prenatally detected nephrouropathies

N (%)
Sex
 male557 (67.8)
 female265 (32.2)
Laterality—fetal ultrasonography
 unilateral491 (59.7)
 bilateral331 (40.3)
Period
 1989–1999273 (33.2)
 2000–2009549 (66.8)
Fetal ultrasonography findings
 unilateral hydronephrosis355 (43.2)
 bilateral hydronephrosis263 (32.0)
 cystic kidneys97 (11.8)
 hydronephrosis + megaureter49 (6.0)
 hydronephrosis + megaureter + urinary tract alterations45 (5.5)
 others13 (1.5)
Postnatal diagnosis
 idiopathic hydronephrosis308 (37.5)
 ureteropelvic junction obstruction157 (19.1)
 multicystic dysplastic kidney89 (10.8)
 vesicoureteral reflux67 (8.2)
 primary megaureter60 (7.3)
 posterior urethral valves46 (5.6)
 ureterocele28 (3.4)
 hypodysplastic kidney20 (2.4)
 prune belly syndrome10 (1.2)
 others38 (4.6)