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Venous Sampling Gradients and Ratios
| Subject | Maximum FGF-23 value | Mean FGF-23 value | Gradient | Ratio |
|---|---|---|---|---|
| 2 | 950 | NAa | NA | NA |
| 5 | 569 | 199 | 370 | 2.9 |
| 6 | 4382 | 1629 | 2753 | 2.7 |
| 8 | 485 | 199 | 286 | 2.4 |
| 11 | 433 | 251 | 182 | 1.7 |
| 13 | 1881 | 1172 | 709 | 1.6 |
| 14 | 398 | 21 | 377 | 18.9 |
| Mean | 1299 | 579 | 779.5 | 5.0 |
Ratio determination = highest FGF-23 value/mean FGF23 value of negative samples in pg/mL. See “Subjects, Materials, and Methods” for details.
Other site values unavailable in intact (Kainos) assay.
