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[Cancer of the testis: risk factors and evolution of mortality in Spain (1951-1983)].

Herein we report the results of a study on the mortality trends of testicular cancer in Spain from 1951-1983. The study showed that following a long period of increased mortality, overall mortality rates for all age groups have dropped in recent years. However, the mortality rate has increased for the young and middle-aged males and has dropped for the older age groups. A similar finding has been observed for other countries such as the United States. We have attempted to interpret these changes based on the risk factors for this type of cancer.