1. Confounding: What it is and how to deal with it
K.J. Jager, C. Zoccali, A. MacLeod, F.W. Dekker 
Kidney International 
Volume 73, Issue 3, Pages (February 2008)
DOI: /sj.ki
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2. Figure 1 Properties of a confounder.
Kidney International  , DOI: ( /sj.ki )
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3. Figure 2
Relationship between dialysis modality and patient survival—could GFR immediately prior to the start of dialysis be a confounder in this relationship?
Kidney International  , DOI: ( /sj.ki )
Copyright © 2008 International Society of Nephrology Terms and Conditions

4. Figure 3
Relationship between BMI and the development of ESRD—could blood pressure be a confounder in this relationship?
Kidney International  , DOI: ( /sj.ki )
Copyright © 2008 International Society of Nephrology Terms and Conditions