Maternal age as a risk factor for hypospadias

Harry Fisch, Robert J. Golden, Gary L. Libersen, Grace S. Hyun, Pamela Madsen, Maria I. New, Terry W. Hensle

Research output: Contribution to journalArticlepeer-review

91 Scopus citations

Abstract

Purpose: Hypospadias incidence rates have been widely reported to be increasing. During the last 20 years there has been a significant increase in the number of women who delay childbearing until their mid 30s. Therefore, it was of interest to determine if increasing maternal age is an independent risk factor for hypospadias. Materials and Methods: Data from the New York State Department of Health and California Birth Defects Monitoring Program were analyzed from 1983 to 1996 by maternal age groups of less than 20, 20 to 24, 25 to 29, 30 to 34, and 35 or greater years. A Poisson model was fitted to the data from each state using maternal age and year of birth from which relative rates were calculated. Results: Our analysis revealed that advancing maternal age is significantly associated with hypospadias and is most evident for severe cases. For example, in California a 50% increase in severe cases was demonstrated for children of mothers older than 35 years compared to mothers younger than 20 years (p <0.05). Conclusions: Hypospadias is significantly associated with increasing maternal age. Women who elect to delay childbearing until their mid 30s or later should be aware that their offspring are at increased risk of hypospadias.

Original languageEnglish
Pages (from-to)934-936
Number of pages3
JournalJournal of Urology
Volume165
Issue number3
DOIs
StatePublished - 2001
Externally publishedYes

Keywords

  • Endocrine system
  • Hypospadias
  • Maternal age

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