'Direct standardization' diaporamas de présentation

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Mapping Rates and Proportions

Mapping Rates and Proportions. Incidence rates Mortality rates Birth rates. Prevalence Proportions Percentages. Mapping Rates and Proportions. Sample Data: Breast Cancer Incidence in Iowa. Years: 1993-1996 7813 Cases (including in-situ) For each case: Age, county

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STANDARDIZATION

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Standardization of Death Rates

Standardization of Death Rates.

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Standardized (adjusted) rate =

Standardized (adjusted) rate = A rate which has been weighted to remove the influence of some extraneous variable, such as age. Standardization. Formula for direct standardization: t s = standardized rate t a = ASDR (proportion of persons dying at age a)

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