Table 3. Correlations of CKD-MBD parameters with serum FGF23 concentration.
| Parameters | Serum FGF23 | ||
|---|---|---|---|
| No. | r | P value | |
| Serum phosphorous | 1,445 | 0.2358 | < 0.001 |
| Serum calcium | 1,448 | −0.1745 | < 0.001 |
| iPTH | 250 | 0.2487 | < 0.001 |
| 25D | 1,447 | −0.1291 | < 0.001 |
| 1,25D | 250 | −0.1706 | 0.007 |
| 1,25D/25D ratio | 250 | 0.0791 | 0.213 |
| Lumbar spine BMD | 1,426 | −0.0309 | 0.243 |
| Total hip BMD | 1,409 | −0.1115 | < 0.001 |
| Femur neck BMD | 1,426 | −0.1305 | < 0.001 |
r = Spearman correlation coefficient.
CKD-MBD = chronic kidney disease-mineral and bone disorder, FGF23 = fibroblast growth factor 23, iPTH = intact parathyroid hormone, 25D = 25-hydroxyvitamin D3, 1,25D = 1,25-dihydroxyvitamin D3, BMD = bone mineral density.