Clinical characteristics of patients with prenatal hydronephrosis in early postnatal period: a single center retrospective study

Table 2 Clinical characteristics of early postnatal period in children with UTD grade in prenatal HN (N = 188) followed up in our center

	UTD P0 N = 65	UTD P1 N = 49	UTD P2 N = 46	UTD P3 N = 28	χ(2)	P
UTI (no/1/≥2)	26/35/4^a	30/18/1^a	28/8/10^b	3/13/12^b	47.88	< 0.001
Jaundice (no/mild/ severe)	24/40^a /1	32/12^b /5	34/11^b /1	19/8^b /1	26.57	< 0.001
Surgery (yes/no)	2/63^a	3/46^a	13/33^b	12/16^b	30.43	< 0.001

Notes 1: UTD P0: anteroposterior diameter of renal pelvis < 10 mm, UTD P1: ≥ 10 ~ 15 mm with central type Calyceal dilatation, UTDP2: > 15 mm with peripheral calyceal dilatation or urination Tube dilatation, UTD P3: ≥ 10 mm with parenchymal thinning or renal parenchyma or coustic enhancement or cortico-medullar junction (or parenchymal) cyst or bladder wall thickness Abnormal or ureteral cyst or dilated posterior urethra, UTI: Urinary Tract Infection. Notes 2: Among the 1137 children with prenatal HN, 188 were admitted to our center for assessment in early postnatal period. The rate of UTI (101) with prenatal HN was 53.7%, and 27(26.7%) UTI children repeated. The rate of jaundice (79) with prenatal HN was 42.0%. Meanwhile, 49 (48.5%) UTI children had jaundice, 49 (62.0%) jaundice children had UTI. The rate of Surgery (30) with prenatal HN was 16.0%. Notes 3: There was statistical significance between the two groups without the same letter (a, b), and there was no statistical significance between the two groups with the same letter (a, b). P < 0.05 was statistically significant

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