Mortality rates for parkinsonism in Italy (1969 to 1987)

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Abstract
Parkinsonism death rates in Italy were analysed for the period 1969-1987. Crude death rates increased markedly in the above period for both sexes. Age-specific rates underwent important changes during these twenty years. In the years 1969-71 the age-specific death rates reach their maximum values at ages 80-84, after which they decline. In the years 1983-87 the rates continue to increase until the 80-84 age group, when they reach a plateau. Moreover, in the more recent years the age-specific rates for ages < 70-75 are lower, whereas those for the older ages are approximately twice as high as the values in the earlier years. The age-adjusted death rates (1981 Italian population) increased slightly in the period studied for both sexes. Rates for males exceed those for females in all the previous analyses. Minor differences appeared in death distribution between the five large areas Italy was divided into. The observed changes in death rates are likely to reflect: changes in age composition of the population over time, greater attention to parkinsonian patients and especially increased duration of this disease following the discovery of its neurochemical basis and effective medical treatment.