QUESTION IS AN EPIDEMIOLOGY QUESTION : EPIDEMIOLOGY EXPERT PLEASE 59. Investigat

Question

QUESTION IS AN EPIDEMIOLOGY QUESTION : EPIDEMIOLOGY EXPERT PLEASE

59. Investigators are exploring the relationship between number of hours worked per week and cardiovascular disease among academic faculty in the United States. During their analysis, they find that the number of hours worked per week and cardiovascular disease are both associated with sedentary behavior (number of hours sitting). Is sedentary behavior more likely to be a confounder or a mediator of this association between number of hours worked and cardiovascular disease? A. Confounder B. Mediator

Explanation / Answer

Counfounding variable is variable which influence both independent and dependent variable causing spurious relationship but mediator variable is one which explain relationship between independent and dependent variable.

Here we see that sedentary behavoir is helping to find the relationship between number of hours worked per week and cardiovascular disease.

Hence answer is B.Mediator.

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