1. note that whites have a higher overall mortality rate
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Example of distortion in aggregated versus disaggregated results. Annual death rates per 1,000 population, by age, Baltimore city, 1965. 1. Note that whites have a higher overall mortality rate. 2. Yet in each subgroup, whites have a lower mortality rate. - PowerPoint PPT Presentation
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Example of distortion in aggregated versus disaggregated results.Annual death rates per 1,000 population, by age, Baltimore city, 1965.
RaceAll
agesAge < 1 yr
1-4 yrs 5-17 18-44 45-64 65+
White 14.3 23.9 0.7 0.4 2.5 15.2 69.3
Black 10.2 31.3 1.6 0.6 4.8 22.6 75.9
1. Note that whites have a higher overall
mortality rate
3. The paradox arises because of the much higher mortality rates in the 65+ age-group, and because many fewer blacks reach this age, so contribute fewer cases overall. The All Ages data should have been age-standardized.
2. Yet in each subgroup, whites
have a lower mortality rate
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