The ASMR for cancer of the colon in men was 3.0 in 1963 and 4.6 in 1982, while the respective figures for women were 2.8 and 3.4. The time trend for 1963–1982 was in two phases: an increase in mortality over the period 1963–1978 in males and females, and after that, in 1979–1982, a decrease for both sexes. The mortality rates increase rapidly with age starting from about 40. The extreme value for both sexes is about 45 deaths per 100000. Mortality increase with calendar time is also observed (usually by the end of the 1970s) in all single age groups and in both sexes.
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