Epidemiology: Use the data in the table below to answer the following questions.

Question

Epidemiology:

Use the data in the table below to answer the following questions. Write a brief sentence that describes each result. Note – these data represent 25 years of follow-up.

Chicago Western Electric Study, 1958-83: Coronary deaths in 2,074 employed, middle-aged men during 25 years of follow-up, by family history of cardiovascular disease at entry into the study Family history of cardiovascular disease at Number follow-up the beginning of the study * Present Absent Total *Family history of cardiovascular disease: death due to cardiovascular disease of a parent before age 60 or of a sibling at any age after childhood Baseline Person-years of Number of coronary deaths at risk during study 409 1,665 2,074 8,586 36,229 44,815 107 253 360

Explanation / Answer

The cumulative incidence of coronary death in men who did not have a positive family history is 253/(253+1665+36229) = 0.0066

This means 0.66% of the subjects out of the pne who did not have family history of cardiovascilar disease were reported dead.

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