Question

Santa Elena is a seacoast community with a population of 99,000. Its residents can be divided into three age groups: 25-44, 45-64, and 65+, each comprising one third of the population. In 1990, 100 cases of hepatitis A occurred in Santa Elena and were traced to the consumption of contaminated oysters. Of these 100 cases, 20 between the ages of 25 and 44, 10 between the ages of 45 and 64, and 5 over the age of 64 ultimately proved fatal. Prior to 1990, Santa Elena had never reported a case of hepatitis A. (Knapp and Miller, 1992) 1. What is the 1990 crude mortality rate for hepatitis A in Santa Elena? 2. What was the incidence of hepatitis A in 1990 (assuming that no cases of the disease occurred in Santa Elena prior to 1990)? 3. What is the age-specific mortality rate for residents over 64 years of age? 4. What is the case-fatality rate for hepatitis A in Santa Elena? 5. There were 6000 deaths in Cook County, which had a population of 2.5 million in 1991. Here is a description of the causes of death: 1250 leukemia 1750 stroke 250 pneumonia 250 Hodgkin's disease 2500 myocardial infarction Calculate the cause-specific mortality rate for acute myocardial infarction in Cook County

Answer 1

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