Table 3.
Laboratory data stratified by UACR values
| UACR <30 mg/g cr | UACR 30–300 mg/g cr | UACR ≥300 mg/g cr | |||||
|---|---|---|---|---|---|---|---|
| Variables | (n = 135) | (n = 40) | (n = 10) | P value | |||
| eGFR, mL/min/1.73 m2 | 51 ± 14 | 48 ± 17 | 39 ± 17 | 0.039 | |||
| Urine albumin creatinine ratio | 9 | (5–15) | 76 | (51–154) | 1241 | (719–2045) | <0.001 |
| Serum cCa, mg/dL | 9.1 | (8.8 - 9.4) | 9.3 | (8.8 - 9.5) | 9.3 | (8.8 - 9.5) | 0.530 |
| Serum inorganic phosphate, mg/dL | 3.30 | (2.90 - 3.70) | 3.30 | (2.90 - 3.50) | 3.65 | (3.30 - 3.98) | 0.042 |
| Urine calcium creatinine ratio | 0.07 | (0.04 - 0.12) | 0.07 | (0.03 - 0.15) | 0.07 | (0.02 - 0.10) | 0.789 |
| Fractional excretion of calcium, % | 0.73 | (0.43 - 1.06) | 0.71 | (0.36 - 1.50) | 0.74 | (0.38 - 1.33) | 0.984 |
| Urine phosphate creatinine ratio | 0.47 ± 0.19 | 0.52 ± 0.23 | 0.59 ± 0.25 | 0.088 | |||
| TRP, % | 87.2 ± 5.7 | 84.0 ± 8.0 | 80.6 ± 9.6 | 0.001 | |||
| TmP/GFR, mg/dL | 3.0 | (2.6 - 3.5) | 2.7 | (2.2 - 3.4) | 2.9 | (2.6 - 3.5) | 0.186 |
| FGF23, pg/mL | 46.8 | (34.3 - 67.0) | 44.1 | (29.9 - 68.5) | 58.3 | (47.0 - 86.3) | 0.330 |
| α-Klotho, mg/dL | 345 | (223–468) | 330 | (200–474) | 358 | (218–589) | 0.736 |