Abstract
Breast cancer mortality trends in Italy.
Highlights
INCIDENCE AND MORTALITY RATES of female breast cancer show marked international variation, being higher in western countries, and having risen in recent years in a number of countries
We supplement these observations by a description of time changes in breastcancer mortality in Italy, a country with a mortality rate, standardized to world population, of 18-24 per 100,000 p-y in
This upward trend is interrupted during the decade covering World War II (1936-46), when the increase was greatly reduced
Summary
From the A nalytical Epidemiology Programme, Division of Human Cancer and Field Programmes, International Agency for Research on Cancer, 150 cours Albert Thomas, 69372 Lyon, cedex 2, France. These time changes have been analysed to a variable degree of detail for a limited number of populations (Bjarnson et al, 1974; Armstrong, 1976; Moolgavkar et al, 1979) These analyses indicate that the increases may be satisfactorily accounted for by: (a) a "pure" generation (birth cohort) effect; this applies to the incidence data of Iceland, Osaka (Japan) and Denmark, for the last the effect being modified by age; (b) some combination of birth cohort and year of occurrence effects, as for the incidence data of Connecticut and the South Metropolitan area of the United Kingdom; and the mortality data for the United States (white population), United Kingdom, Canada and Japan. 15 quinquennia are omitted for graphical clarity but they follow the same pattern
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