) A researcher recruited 2100 men in his research and followed up every year for 4...

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) A researcher recruited 2100 men in his research and followedup every year for 4 years to find out the incidence rate ofrespiratory disease.
After 1 year, there was not a new diagnosis of respiratorydisease, and 100 lost to follow up,
After 2 years, found one new case of respiratory disease and 99lost to follow up,
After 3 years, found 7 new cases of respiratory diseases andseven hundred ninety three lost to follow up.
After 4 years, found eight new cases of respiratory diseases andthree hundred ninety two lost to follow up.
Calculate the incidence rate of respiratorydisease
(new cases of respiratory disease and men lost tofollow up were disease-free for six months) and contribute ½years to the denominator)

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Incidence rate of respiratory disease Total number of new cases of respiratory diseases Total population at risk After 1 year there was not a new diagnosis of respiratory disease and 100 lost to follow up New cases and population lost to follow up 0 100 100 Remaining population at risk after 1 year See Answer

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