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9655 Social & Preventive Medicine

A 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 introduced? (Assumed that 1 year early detection has no effect on the natural history of disease) ?

AIt will be a good screening test
BThe period prevelance will decrease
CThe apparent 5 year survival rate will increase
DThe incidence rate will decrease
Social & Preventive Medicine
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