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. Author manuscript; available in PMC: 2017 Jan 18.
Published in final edited form as: Kidney Int. 2010 Oct 20;79(3):356–362. doi: 10.1038/ki.2010.388

Figure 4. Restricted cubic spline regression model of the hazard of glomerular filtration rate (GFR) event or dialysis among all participants by baseline serum bicarbonate levels after adjusting for gender, age, trial assignment, measured GFR, and proteinuria.

Figure 4

The estimated adjusted hazard ratio as a function of baseline serum bicarbonate, using a bicarbonate level of 20 mmol/l as the reference, with 95% pointwise confidence limits, is shown here.