An Evaluation of Predisposing Factors for Testis Cancer in Ireland

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Abstract
All testis cancer in Ireland (1980-1985) was analysed (n = 240). Incidence was highest in young adults(5.8/10^5/year in those aged 25-34 years) with a moderate level in the elderly (1.8/10^5/year in those over 75 years). Associations elsewhere with maldescent and social class were confirmed but cryptorchidism (12%) was more common than expected. Significant infertility was not identified. Associations with urban domicile (77%, p = 0.001),mental handicap (2.8%, p < 0.05), recent vasectomy (1.2%, p = 0.009) and certain occupations were observed.