Biology High School

Suppose study looked at smoking (yes/no) as an exposure and CHD (yes/no) as outcome, and found a relative risk of 2.15. Which of the following is the correct interpretation of the RR? Smoking increases the risk of CHD by 2.15 The risk of CHD among smokers is 2.15 time the risk of non-smokers_ The risk among smokers is 2.15 higher than non-smokers_ The risk of CHD among non-smokers is half that of smokers

Answers

Answer 1

The correct interpretation of the RR is: Smoking increases the risk of CHD by 2.15. Hence Option Smoking increases the risk of CHD by 2.15 is correct.

Suppose a study looked at smoking (yes/no) as an exposure and CHD (yes/no) as outcome, and found a relative risk of 2.15. The correct interpretation of the RR is: Smoking increases the risk of CHD by 2.15.Relative risk (RR) is a measure of the strength of the association between an exposure and an outcome. In this case, smoking (exposure) and CHD (outcome) are being measured. When the RR is greater than 1, it suggests that the exposure is associated with an increased risk of the outcome.

If the RR is less than 1, the exposure is associated with a reduced risk of the outcome. If the RR is equal to 1, it suggests that the exposure is not associated with either an increased or reduced risk of the outcome.Here, the relative risk of 2.15 suggests that the risk of CHD is 2.15 times higher among smokers than non-smokers. Therefore, the correct interpretation of the RR is "Smoking increases the risk of CHD by 2.15".

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