J Korean Med Sci.  1989 Mar;4(1):13-21. 10.3346/jkms.1989.4.1.13.

A survey of externally recognizable genitourinary anomalies in Korean newborns

• Choi H
• Kim KM
• Koh SK
• Kim KS
• Woo YN
• Yoon JB
• Choi SK
• Kim SW

• KMID: 1421444
• DOI: http://doi.org/10.3346/jkms.1989.4.1.13

Abstract

To estimate the incidence of externally recognizable genitourinary anomalies and associated anomalies in the newborns in Korea, retrospective and prospective studies have been performed. Thirty eight of 48 urology training hospitals participated in this nationwide survey. In this study we have included minor defects or variations in the anomaly to evaluate the incidence of the recognizable genitourinary conditions in the newborns. The incidence of genitourinary anomaly in 1,000 newborn delivery in a year was 11.0 in the prospective study and this figure is about three times higher than the retrospective study and is considered to be close to the true incidence. The incidence of genitourinary anomaly in 1,000 male newborn was 20.4. Hydrocele, cryptorchidism and hypospadias were most commonly observed. The incidence of hydrocele in 1,000 male newborn was 9.89 and the incidence of cryptorchidism was 7.26 and the incidence of hypospadias was 2.13. The incidence of associated anomaly in 100 genitourinary anomaly was 7.9. Congenital heart diseases and anorectal anomalies were commonly associated anomalies. In the newborns with genitourinary anomalies, premature infants account larger portion than is usually reported in total delivery.

Keyword

incidence of genitourinary anomalies; newborns

MeSH Terms

Birth Weight
Congenital Abnormalities/epidemiology
Female
Gestational Age
Humans
Infant, Newborn
Korea
Male
*Urogenital Abnormalities