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3381 Social & Preventive Medicine

A diagnostic test has been introduced that will detect a ceain disease 1 year earlier than it is usually detected. Which of the following is most likely to happen to the disease within 10 years after the test is introduced? (Assumed that early detection has no effect on the natural history of the disease. Also assume that no changes in death ceification practises occur during the 10 years.)

AThe period prevelance rate will decrease
BThe apparent 5-year survival rate will increase
CThe age adjusted moality rate will decrease
DThe incidence rate will decrease
Social & Preventive Medicine
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