Table 2.
Hazard ratios for hematocrit, UPC, phosphorus, 25(OH)D, 1,25(OH)D, PTH, FGF‐23, CaPP, iCa, tCa, albumin, BCS, and MCS
| Reference cut‐off | Units | Median survival below RC (months) | Median survival above RC (months) | Hazard ratio | 95% CI of hazard ratio | P value | |
|---|---|---|---|---|---|---|---|
| Hematocrit | 36 | % | 10.71 | 12.35 | 0.96771 | 0.414 to 2.259 | .9 |
| UPC | 0.5 | mg2/dL2 | 19.2 | 8.769 | 3.191 | 1.310 to 7.773 | .01 |
| Phosphorus | 4.5/5.0/6.0 | mg/dL | 19.2 | 6 | 3.2 | 1.357 to 7.548 | .005 |
| 25(OH)D | 50.4 | ng/mL | 10.02 | 13.64 | 0.7343 | 0.3179 to 1.697 | .15 |
| 1,25(OH)D | 169 | pg/mL | 10.36 | 13.7 | 0.7565 | 0.2574 to 2.224 | .25 |
| PTH | 1.8 | pmol/L | 10.92 | 11.17 | 0.9773 | 0.3307 to 2.888 | .45 |
| FGF‐23 | 450 | pg/mL | 26.08 | 10.29 | 2.609 | 1.09 to 6.24 | .05 |
| CaPP | 70 | mg2/dL2 | 12.84 | 3.13 | 4.092 | 1.771 to 9.454 | .003 |
| iCa | 4.9 | mg/dL | 1.546 | 11.04 | 1.045 | 0.2477 to 4.404 | .95 |
| tCa | 9.3 | mg/dL | 1.108 | 11.17 | 10.08 | 2.364 to 43 | .001 |
| Alb | 2.9 | mg/dL | 3.138 | 11.48 | 28.38 | 2.621 to 307.3 | .005 |
| BCS | 4 | NA | 3.393 | 11.964 | 1.579 | 1.003 to 2.282 | .05 |
| MCS | Abnormal | NA | 7.615 | 12.78 | 2.334 | 1.352 to 4.030 | .01 |
Abbreviations: 25(OH)D, 25‐hydroxyvitamin D; 1,25(OH)D, 1,25‐hydroxyvitamin D; Alb, albumin; BCS, body condition score; CaPP, calcium × phosphorus product; CKD, chronic kidney disease; FGF‐23, fibroblast growth factor‐23; iCa, ionized calcium; MCS, muscle condition score; PTH, parathyroid hormone; RC, reference cut‐off; tCa, total calcium; UPC, urine protein:creatinine ratio.