Question

If cases are under reported in a cohort study, the calculated measure of a association (RR)...

If cases are under reported in a cohort study, the calculated measure of a association (RR) would ___.

(a) increase.

(b) decrease.

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Answer #1

Ans) b) decrease

Explaination:

- Relative risk or Risk Ratio ( RR ) can be calculated directly in cohort types of studies.

- This compares the incidence rates, person-time rates, or mortality rates of two groups; typically for a group of primary interest to a comparison group.

- If cases are under reported in cohort type studies then RR decreases as it indicates an decreased risk for the primary interest group (negative association between exposure and incidence)

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