Which one of the following is a situation that does NOT result in residual confo
ID: 3331251 • Letter: W
Question
Which one of the following is a situation that does NOT result in residual confounding?
When the categories of the potential confounder controlled for are too broad
When some potential confounding variables remain unaccounted for
When the exposure-outcome association varies by level of the potential confounder
When the potential confounding variable is an imperfect marker of the true variable one wishes to adjust for
a.When the categories of the potential confounder controlled for are too broad
b.When some potential confounding variables remain unaccounted for
c.When the exposure-outcome association varies by level of the potential confounder
d.When the potential confounding variable is an imperfect marker of the true variable one wishes to adjust for
Explanation / Answer
C is the right answer
B is explained by point 1, D by 3, A by 2. Therefore, C is doesn't result in residual confounding. Residual confounding is the distortion that remains after controlling for confounding in the design and/or analysis of a study. There are three causes of residual confounding:
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