Figure 2

Relation between proteinuria and FGF23. FGF23 was log transformed and adjusted for eGFR, phosphate, natural logarithm of PTH, calcium, smoking, history of cardiovascular disease and history of diabetes mellitus. Categories of albuminuria: 1) no proteinuria; 2) proteinuria < 0.5 gram/24 hours; 3) proteinuria between 0.5 and 2.0 gram/24 hours and 4) proteinuria > 2 gram/24 hours. The error bars represent the standard error of the mean.