1. Volume 72, Issue 5, Pages 632-637 (September 2007)
Age- and gender-specific reference values of estimated GFR in Caucasians: The Nijmegen Biomedical Study 
J.F.M. Wetzels, L.A.L.M. Kiemeney, D.W. Swinkels, H.L. Willems, M.den Heijer 
Kidney International 
Volume 72, Issue 5, Pages (September 2007)
DOI: /sj.ki
Copyright © 2007 International Society of Nephrology Terms and Conditions

2. Figure 1
Reference values of estimated GFR for non-diseased Caucasian males. Median values and 5, 25, 75, and 95 percentiles are shown for persons grouped in 5 years age classes.
Kidney International  , DOI: ( /sj.ki )
Copyright © 2007 International Society of Nephrology Terms and Conditions

3. Figure 2
Reference values of estimated GFR for non-diseased Caucasian females. Median values and 5, 25, 75, and 95 percentiles are shown for persons grouped in 5 years age classes.
Kidney International  , DOI: ( /sj.ki )
Copyright © 2007 International Society of Nephrology Terms and Conditions

4. Figure 3
Prevalence of CKD stages 3–5 (GFR <60 ml/min/1.73 m2) according to age in the non-diseased Caucasian Nijmegen Biomedical Study population. Black bars represent men and open bars women.
Kidney International  , DOI: ( /sj.ki )
Copyright © 2007 International Society of Nephrology Terms and Conditions