Figure 3.

Correlation between the calcium (Ca)-phosphate (Pi) product and the serum Ca or serum Pi concentration. The serum Pi level was the significant factor in determining CaPi product. The CaPi product is mainly determined by the Pi concentration and is closely correlated with the serum Pi (Y = 10.476 – 5.155, r² = 0.914), but not with the serum Ca (r² = 0.229).

Note: Reproduced from Shigematsu T, Kono T, Satoh K, et al. Phosphate overload accelerates vascular calcium deposition in end-stage renal disease patients. Nephrol Dial Transplant. 2003;18 Suppl 3:iii86–iii89,14 with permission from Oxford University Press.