Topic: Adjusted Associations and Confounding

Overadjustment for Post-Exposure Variables

Marginal and Conditional Associations in Practice

How Adjusting for a Mediator Changes the Association

Drawing Directed Acyclic Graphs for Adjustment Questions

Deriving the Omitted-Variable Bias Formula

Defining the Association Before Choosing Adjustments

Confounder, Mediator, or Prognostic Variable

Confounding by Indication in Treatment Comparisons

Common Mistakes in Regression Adjustment

Comparing Adjustment Sets in a Worked Analysis