Data Analysis: Confounders, Mediators, and Moderators
Data Analysis: Confounders, Mediators, and Moderators
Data Analysis: Confounders, Mediators, and Moderators
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Example 2:<br />
Q: Does smoking affect quality of life?<br />
<strong>Data</strong>: Smoking mean QOL score<br />
Adjust for lung disease:<br />
Yes 75<br />
No 85<br />
No COPD Yes 90<br />
No 90<br />
COPD Yes 71<br />
Confounder? Moderator? Mediator?<br />
F<br />
A ? B<br />
No 71<br />
?<br />
Smoking<br />
Lung<br />
disease<br />
?<br />
QOL<br />
A Evans, March 2006 <strong>Confounders</strong>, <strong>Mediators</strong>, <strong>Moderators</strong> 2
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