Melanoma malignum is a rare neoplasm. It caused the death of 781 men and 928 women during the period 1975–1979. Despite the small number of cases, it is a subject of particular interest because of the sharp increase in its frequency in many countries. The present analysis is based on data of the period 1963–1979.1 The ASMR for the skin melanoma in men was 0.4, in 1963 and 1.0 in 1979, while the respective rates for women were 0.3 and 0.9. The period under study saw a considerable increase in the mortality rates in both sexes. The mean annual mortality rate increase, calculated for the years 1963–1979, was the highest of all other cancers, namely, 12.2% in men and 9.8% in women. The mortality rate increased in all age groups, both sexes and in successive birth cohorts. The cumulative mortality rate increase in the 1920 birth cohort compared with the 1880 cohort was 18 times greater in men and eight times greater in women.
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