Towards evidence based circumcision of English boys: survey of trends in practice.

also found an increased risk of cancer of the peritoneum and other digestive organs. One explanation for this association is that some of the observed cancers in this category were misclassified testicular or extragonadal germ cell tumours. Extragonadal germ cell tumours have been associated with testicular carci-noma in situ, 28 29 suggesting a common aetiology with testicular cancer. From a public health perspective, our study provides some reassurance to men identified with abnormal semen characteristics, despite the increased relative risks. The absolute excess of cancers is about 36 cases per 32 442 men followed for 297 750 person years. The absolute increase in risk for the individual is therefore very small. NE, et al. Fertility and offspring sex ratio of men who develop testicular cancer: a record linkage study. Interrelations among the characteristics of human semen, and a new system for classification of male infertility. 12 World Health Organization. Laboratory manual for examination of human semen and sperm-cervical mucus interaction. et al. Endocrine and exocrine profiles of men with testicular tumors before orchidectomy. a self-reporting national cancer registration system with elements of active data collection. Fertility prognosis for infertile men: results of follow-up study of semen analysis in infertile men from two different populations evaluated by the Cox regression model. al. Increase in testicular cancer incidence in six European countries: a birth cohort phenomenon. Maternal health and pre-and perinatal characteristics in the etiology of testicular cancer: a prospective population-and register-based study on Norwegian males of the testis: possible origin from gonocytes and precursor of all types of germ cell tumors except spermacytoma. Carcinoma-in-situ testis in patients with assumed extragonadal germ-cell tumours.