Figure 4From: A low fractional excretion of Phosphate/Fgf23 ratio is associated with severe abdominal Aortic calcification in stage 3 and 4 kidney disease patients The severity of AAC is higher in patients with a FEP/FGF23 below the threshold FEP/FGF23 = 1/3.9. Box-plot analysis of the AAC measured by the Kauppila index (KI) in patients with a ratio FEP/FGF23 below 1/3.9 or equal or above 1/3.9. Patients were divided in two groups defined by the median of the ratio (1/3.9).Back to article page