Birth prevalence of cryptorchidism and hypospadias in northern England, 1993-2000

Abstract

HES data were of high quality for the study period. There was no significant change in the prevalence of surgically corrected hypospadias. However, there was an apparent decline in the prevalence of surgically corrected cryptorchidism that may reflect a decrease in the prevalence of the condition or may be due to a decrease in the rate of surgical intervention.

Time trends and geographic variations in the prevalence of hypospadias in China

“…The average annual increase in Denmark from 1977 to 2005 was 2.40% (Lund et al, 2009). In northern England, the birth prevalence increased at a rate of 0.05 per 1000 male live births per year between 1993 and 2000 (Abdullah et al 2007a). However, reports from Scotland for 1988 to 1997 (Ahmed et al, 2004), New York for 1992-2005(Fisch et al, 2009), California for 1989to 1997(Carmichael et al, 2003, Washington for 1987 to 2002 (Porter et al, 2005), and Hokkaido, Japan for 1985 to 1997 (Kurahashi et al, 2004) did not indicate any growth trends in prevalence rates.…”

“…The prevalences of overall and isolated hypospadias in China were 9.03 and 7.64 per 10,000 male births, respectively, and lower than in the data reported by other countries or regions. For example, the total prevalence of hypospadias was 34.9 per 10,000 live births in New York in 1992 to 2005 (Fisch et al, 2009), 29 per 10,000 male births in Bulgaria (Kumanov et al, 2007), 31 per 10,000 male births in northern England in 1993 to 2000 (Abdullah et al, 2007a), and 73 per 10,000 male births in the Netherlands (Pierik et al, 2002). The prevalences of overall and isolated hypospadias were 34.8 and 28.5 per 10,000 births in Western Australia in 1980 to 2000 (Nassar et al, 2007).…”

“…Currently, the time trends of hypospadias prevalence in other countries worldwide are not consistent. Australia (Nassar et al, 2007), Denmark (Lund et al, 2009), and the United Kingdom (Abdullah et al, 2007a) have reported increasing trends in hypospadias prevalence, whereas Japan (Kurahashi et al, 2004), Scotland (Ahmed et al, 2004), and the U.S. states of New York (Fisch et al, 2009), Washington (Porter et al, 2005), and California (Carmichael et al, 2003) have reported no significant increases. In addition, regional differences in hypospadias prevalences have been reported; for example, a spatial clustering of hypospadias prevalences was found in northern England (Abdullah et al, 2007a).…”

Spermatogenesis in Cryptorchidism

“…The overall prevalence was 7.6 per 1,000 male live births over the course of this 7-year period, with a rate of decrease of 0.08 cases per 1,000 male live births each year ( 10 ) .…”

The role of hormones and environmental factors in the development of genitourinary anomalies

“…Hipospadias sıklığı farklı bölgeler-de farklı düzeylerde görülmektedir. İngiltere'de 1993 ile 2000 yılları arasında 3.1/1000 oranında iken, Quebec, Kanada'da 11.4/1000 sıklıkta görülmüştür (19,20) . Ülkemizde İstanbul'da yapılan bir çalışmada, bu oran 19.4/1000 olarak saptanmıştır (21) .…”